Home / 268,435.08-402,711.48-81,461.16

Finding the Fourth Proportional to 268,435.08, 402,711.48 and 81,461.16

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Solution

The fourth proportional to 268,435.08, 402,711.48 and 81,461.16 is: 122,209.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,435.08 : 402,711.48 = 81,461.16 : x
  2. Step 2: Convert to fraction form
    268,435.08/402,711.48 = 81,461.16/x
  3. Step 3: Cross multiply
    268,435.08x = 402,711.48 × 81,461.16
  4. Step 4: Simplify right side
    268,435.08x = 32,805,344,306.12
  5. Step 5: Solve for x
    x = 32,805,344,306.12/268,435.08
  6. Step 6: Final answer
    x = 122,209.60

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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.