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Finding the Fourth Proportional to 324,385, 486,839.58 and 137,527.72

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Solution

The fourth proportional to 324,385, 486,839.58 and 137,527.72 is: 206,402.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,385 : 486,839.58 = 137,527.72 : x
  2. Step 2: Convert to fraction form
    324,385/486,839.58 = 137,527.72/x
  3. Step 3: Cross multiply
    324,385x = 486,839.58 × 137,527.72
  4. Step 4: Simplify right side
    324,385x = 66,953,937,443.16
  5. Step 5: Solve for x
    x = 66,953,937,443.16/324,385
  6. Step 6: Final answer
    x = 206,402.69

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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.