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Finding the Fourth Proportional to 424,280.52, 636,597.03 and 171,739.53

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Solution

The fourth proportional to 424,280.52, 636,597.03 and 171,739.53 is: 257,680.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,280.52 : 636,597.03 = 171,739.53 : x
  2. Step 2: Convert to fraction form
    424,280.52/636,597.03 = 171,739.53/x
  3. Step 3: Cross multiply
    424,280.52x = 636,597.03 × 171,739.53
  4. Step 4: Simplify right side
    424,280.52x = 109,328,874,731.60
  5. Step 5: Solve for x
    x = 109,328,874,731.60/424,280.52
  6. Step 6: Final answer
    x = 257,680.64

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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.