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Finding the Fourth Proportional to 344,307.05, 516,460.58 and 209,587.85

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Solution

The fourth proportional to 344,307.05, 516,460.58 and 209,587.85 is: 314,381.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,307.05 : 516,460.58 = 209,587.85 : x
  2. Step 2: Convert to fraction form
    344,307.05/516,460.58 = 209,587.85/x
  3. Step 3: Cross multiply
    344,307.05x = 516,460.58 × 209,587.85
  4. Step 4: Simplify right side
    344,307.05x = 108,243,861,524.01
  5. Step 5: Solve for x
    x = 108,243,861,524.01/344,307.05
  6. Step 6: Final answer
    x = 314,381.78

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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.