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Finding the Fourth Proportional to 361,488.90, 498,854.73 and 200,354.35

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Solution

The fourth proportional to 361,488.90, 498,854.73 and 200,354.35 is: 276,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,488.90 : 498,854.73 = 200,354.35 : x
  2. Step 2: Convert to fraction form
    361,488.90/498,854.73 = 200,354.35/x
  3. Step 3: Cross multiply
    361,488.90x = 498,854.73 × 200,354.35
  4. Step 4: Simplify right side
    361,488.90x = 99,947,711,677.53
  5. Step 5: Solve for x
    x = 99,947,711,677.53/361,488.90
  6. Step 6: Final answer
    x = 276,489.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.