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Finding the Fourth Proportional to 424,488.60, 636,633.54 and 158,255.64

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Solution

The fourth proportional to 424,488.60, 636,633.54 and 158,255.64 is: 237,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,488.60 : 636,633.54 = 158,255.64 : x
  2. Step 2: Convert to fraction form
    424,488.60/636,633.54 = 158,255.64/x
  3. Step 3: Cross multiply
    424,488.60x = 636,633.54 × 158,255.64
  4. Step 4: Simplify right side
    424,488.60x = 100,750,848,318.17
  5. Step 5: Solve for x
    x = 100,750,848,318.17/424,488.60
  6. Step 6: Final answer
    x = 237,346.42

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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.