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Finding the Fourth Proportional to 298,238.76, 447,034.68 and 148,590.72

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Solution

The fourth proportional to 298,238.76, 447,034.68 and 148,590.72 is: 222,724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,238.76 : 447,034.68 = 148,590.72 : x
  2. Step 2: Convert to fraction form
    298,238.76/447,034.68 = 148,590.72/x
  3. Step 3: Cross multiply
    298,238.76x = 447,034.68 × 148,590.72
  4. Step 4: Simplify right side
    298,238.76x = 66,425,204,966.17
  5. Step 5: Solve for x
    x = 66,425,204,966.17/298,238.76
  6. Step 6: Final answer
    x = 222,724.92

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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.