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Finding the Fourth Proportional to 296,776.59, 445,160.93 and 72,136.41

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Solution

The fourth proportional to 296,776.59, 445,160.93 and 72,136.41 is: 108,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,776.59 : 445,160.93 = 72,136.41 : x
  2. Step 2: Convert to fraction form
    296,776.59/445,160.93 = 72,136.41/x
  3. Step 3: Cross multiply
    296,776.59x = 445,160.93 × 72,136.41
  4. Step 4: Simplify right side
    296,776.59x = 32,112,311,001.78
  5. Step 5: Solve for x
    x = 32,112,311,001.78/296,776.59
  6. Step 6: Final answer
    x = 108,203.65

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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.