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Finding the Fourth Proportional to 424,316.16, 636,474.24 and 199,536.84

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Solution

The fourth proportional to 424,316.16, 636,474.24 and 199,536.84 is: 299,305.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,316.16 : 636,474.24 = 199,536.84 : x
  2. Step 2: Convert to fraction form
    424,316.16/636,474.24 = 199,536.84/x
  3. Step 3: Cross multiply
    424,316.16x = 636,474.24 × 199,536.84
  4. Step 4: Simplify right side
    424,316.16x = 127,000,058,591.00
  5. Step 5: Solve for x
    x = 127,000,058,591.00/424,316.16
  6. Step 6: Final answer
    x = 299,305.26

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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.