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Finding the Fourth Proportional to 277,178.70, 415,670.85 and 144,014.70

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Solution

The fourth proportional to 277,178.70, 415,670.85 and 144,014.70 is: 215,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,178.70 : 415,670.85 = 144,014.70 : x
  2. Step 2: Convert to fraction form
    277,178.70/415,670.85 = 144,014.70/x
  3. Step 3: Cross multiply
    277,178.70x = 415,670.85 × 144,014.70
  4. Step 4: Simplify right side
    277,178.70x = 59,862,712,761.50
  5. Step 5: Solve for x
    x = 59,862,712,761.50/277,178.70
  6. Step 6: Final answer
    x = 215,971.55

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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.