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Finding the Fourth Proportional to 319,491.52, 479,155.20 and 94,798.80

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Solution

The fourth proportional to 319,491.52, 479,155.20 and 94,798.80 is: 142,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,491.52 : 479,155.20 = 94,798.80 : x
  2. Step 2: Convert to fraction form
    319,491.52/479,155.20 = 94,798.80/x
  3. Step 3: Cross multiply
    319,491.52x = 479,155.20 × 94,798.80
  4. Step 4: Simplify right side
    319,491.52x = 45,423,337,973.76
  5. Step 5: Solve for x
    x = 45,423,337,973.76/319,491.52
  6. Step 6: Final answer
    x = 142,173.85

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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.