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Finding the Fourth Proportional to 247,665.60, 341,755.20 and 171,266.40

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Solution

The fourth proportional to 247,665.60, 341,755.20 and 171,266.40 is: 236,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,665.60 : 341,755.20 = 171,266.40 : x
  2. Step 2: Convert to fraction form
    247,665.60/341,755.20 = 171,266.40/x
  3. Step 3: Cross multiply
    247,665.60x = 341,755.20 × 171,266.40
  4. Step 4: Simplify right side
    247,665.60x = 58,531,182,785.28
  5. Step 5: Solve for x
    x = 58,531,182,785.28/247,665.60
  6. Step 6: Final answer
    x = 236,331.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.