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Finding the Fourth Proportional to 296,743.60, 445,115.95 and 72,104.22

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Solution

The fourth proportional to 296,743.60, 445,115.95 and 72,104.22 is: 108,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,743.60 : 445,115.95 = 72,104.22 : x
  2. Step 2: Convert to fraction form
    296,743.60/445,115.95 = 72,104.22/x
  3. Step 3: Cross multiply
    296,743.60x = 445,115.95 × 72,104.22
  4. Step 4: Simplify right side
    296,743.60x = 32,094,738,384.31
  5. Step 5: Solve for x
    x = 32,094,738,384.31/296,743.60
  6. Step 6: Final answer
    x = 108,156.47

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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.