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Finding the Fourth Proportional to 424,033.48, 636,188.28 and 199,416.28

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Solution

The fourth proportional to 424,033.48, 636,188.28 and 199,416.28 is: 299,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,033.48 : 636,188.28 = 199,416.28 : x
  2. Step 2: Convert to fraction form
    424,033.48/636,188.28 = 199,416.28/x
  3. Step 3: Cross multiply
    424,033.48x = 636,188.28 × 199,416.28
  4. Step 4: Simplify right side
    424,033.48x = 126,866,300,177.20
  5. Step 5: Solve for x
    x = 126,866,300,177.20/424,033.48
  6. Step 6: Final answer
    x = 299,189.35

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1.5x scale

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.