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Finding the Fourth Proportional to 359,246.80, 538,870.20 and 353,102.80

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Solution

The fourth proportional to 359,246.80, 538,870.20 and 353,102.80 is: 529,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,246.80 : 538,870.20 = 353,102.80 : x
  2. Step 2: Convert to fraction form
    359,246.80/538,870.20 = 353,102.80/x
  3. Step 3: Cross multiply
    359,246.80x = 538,870.20 × 353,102.80
  4. Step 4: Simplify right side
    359,246.80x = 190,276,576,456.56
  5. Step 5: Solve for x
    x = 190,276,576,456.56/359,246.80
  6. Step 6: Final answer
    x = 529,654.20

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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.