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Finding the Fourth Proportional to 277,486.10, 416,240.80 and 87,942.32

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Solution

The fourth proportional to 277,486.10, 416,240.80 and 87,942.32 is: 131,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,486.10 : 416,240.80 = 87,942.32 : x
  2. Step 2: Convert to fraction form
    277,486.10/416,240.80 = 87,942.32/x
  3. Step 3: Cross multiply
    277,486.10x = 416,240.80 × 87,942.32
  4. Step 4: Simplify right side
    277,486.10x = 36,605,181,630.66
  5. Step 5: Solve for x
    x = 36,605,181,630.66/277,486.10
  6. Step 6: Final answer
    x = 131,917.17

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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.