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Finding the Fourth Proportional to 486,544.70, 729,886.80 and 149,613.65

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Solution

The fourth proportional to 486,544.70, 729,886.80 and 149,613.65 is: 224,441.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,544.70 : 729,886.80 = 149,613.65 : x
  2. Step 2: Convert to fraction form
    486,544.70/729,886.80 = 149,613.65/x
  3. Step 3: Cross multiply
    486,544.70x = 729,886.80 × 149,613.65
  4. Step 4: Simplify right side
    486,544.70x = 109,201,028,234.82
  5. Step 5: Solve for x
    x = 109,201,028,234.82/486,544.70
  6. Step 6: Final answer
    x = 224,441.92

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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.