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Finding the Fourth Proportional to 315,964.35, 473,527.33 and 138,277.89

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Solution

The fourth proportional to 315,964.35, 473,527.33 and 138,277.89 is: 207,233.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,964.35 : 473,527.33 = 138,277.89 : x
  2. Step 2: Convert to fraction form
    315,964.35/473,527.33 = 138,277.89/x
  3. Step 3: Cross multiply
    315,964.35x = 473,527.33 × 138,277.89
  4. Step 4: Simplify right side
    315,964.35x = 65,478,360,049.73
  5. Step 5: Solve for x
    x = 65,478,360,049.73/315,964.35
  6. Step 6: Final answer
    x = 207,233.38

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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.