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Finding the Fourth Proportional to 298,935, 447,294.90 and 239,590.68

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Solution

The fourth proportional to 298,935, 447,294.90 and 239,590.68 is: 358,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,935 : 447,294.90 = 239,590.68 : x
  2. Step 2: Convert to fraction form
    298,935/447,294.90 = 239,590.68/x
  3. Step 3: Cross multiply
    298,935x = 447,294.90 × 239,590.68
  4. Step 4: Simplify right side
    298,935x = 107,167,689,251.53
  5. Step 5: Solve for x
    x = 107,167,689,251.53/298,935
  6. Step 6: Final answer
    x = 358,498.30

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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.