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Finding the Fourth Proportional to 324,384, 486,838.08 and 137,526.72

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Solution

The fourth proportional to 324,384, 486,838.08 and 137,526.72 is: 206,401.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,384 : 486,838.08 = 137,526.72 : x
  2. Step 2: Convert to fraction form
    324,384/486,838.08 = 137,526.72/x
  3. Step 3: Cross multiply
    324,384x = 486,838.08 × 137,526.72
  4. Step 4: Simplify right side
    324,384x = 66,953,244,313.50
  5. Step 5: Solve for x
    x = 66,953,244,313.50/324,384
  6. Step 6: Final answer
    x = 206,401.19

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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.