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Finding the Fourth Proportional to 359,475.15, 498,172.80 and 354,401.31

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Solution

The fourth proportional to 359,475.15, 498,172.80 and 354,401.31 is: 491,141.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,475.15 : 498,172.80 = 354,401.31 : x
  2. Step 2: Convert to fraction form
    359,475.15/498,172.80 = 354,401.31/x
  3. Step 3: Cross multiply
    359,475.15x = 498,172.80 × 354,401.31
  4. Step 4: Simplify right side
    359,475.15x = 176,553,092,926.37
  5. Step 5: Solve for x
    x = 176,553,092,926.37/359,475.15
  6. Step 6: Final answer
    x = 491,141.30

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.