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Finding the Fourth Proportional to 268,525.92, 402,762.72 and 81,539.04

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Solution

The fourth proportional to 268,525.92, 402,762.72 and 81,539.04 is: 122,300.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,525.92 : 402,762.72 = 81,539.04 : x
  2. Step 2: Convert to fraction form
    268,525.92/402,762.72 = 81,539.04/x
  3. Step 3: Cross multiply
    268,525.92x = 402,762.72 × 81,539.04
  4. Step 4: Simplify right side
    268,525.92x = 32,840,885,536.59
  5. Step 5: Solve for x
    x = 32,840,885,536.59/268,525.92
  6. Step 6: Final answer
    x = 122,300.62

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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.