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Finding the Fourth Proportional to 425,116.76, 586,649.16 and 231,520.10

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Solution

The fourth proportional to 425,116.76, 586,649.16 and 231,520.10 is: 319,491.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,116.76 : 586,649.16 = 231,520.10 : x
  2. Step 2: Convert to fraction form
    425,116.76/586,649.16 = 231,520.10/x
  3. Step 3: Cross multiply
    425,116.76x = 586,649.16 × 231,520.10
  4. Step 4: Simplify right side
    425,116.76x = 135,821,069,254.87
  5. Step 5: Solve for x
    x = 135,821,069,254.87/425,116.76
  6. Step 6: Final answer
    x = 319,491.22

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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.