Home / 268,267.33-402,463.23-78,720.04

Finding the Fourth Proportional to 268,267.33, 402,463.23 and 78,720.04

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Solution

The fourth proportional to 268,267.33, 402,463.23 and 78,720.04 is: 118,098.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,267.33 : 402,463.23 = 78,720.04 : x
  2. Step 2: Convert to fraction form
    268,267.33/402,463.23 = 78,720.04/x
  3. Step 3: Cross multiply
    268,267.33x = 402,463.23 × 78,720.04
  4. Step 4: Simplify right side
    268,267.33x = 31,681,921,564.13
  5. Step 5: Solve for x
    x = 31,681,921,564.13/268,267.33
  6. Step 6: Final answer
    x = 118,098.32

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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.