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Finding the Fourth Proportional to 277,270.10, 415,905.15 and 136,999.70

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Solution

The fourth proportional to 277,270.10, 415,905.15 and 136,999.70 is: 205,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,270.10 : 415,905.15 = 136,999.70 : x
  2. Step 2: Convert to fraction form
    277,270.10/415,905.15 = 136,999.70/x
  3. Step 3: Cross multiply
    277,270.10x = 415,905.15 × 136,999.70
  4. Step 4: Simplify right side
    277,270.10x = 56,978,880,778.46
  5. Step 5: Solve for x
    x = 56,978,880,778.46/277,270.10
  6. Step 6: Final answer
    x = 205,499.55

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.