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Finding the Fourth Proportional to 359,284.17, 539,042.90 and 172,310.25

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Solution

The fourth proportional to 359,284.17, 539,042.90 and 172,310.25 is: 258,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,284.17 : 539,042.90 = 172,310.25 : x
  2. Step 2: Convert to fraction form
    359,284.17/539,042.90 = 172,310.25/x
  3. Step 3: Cross multiply
    359,284.17x = 539,042.90 × 172,310.25
  4. Step 4: Simplify right side
    359,284.17x = 92,882,615,998.17
  5. Step 5: Solve for x
    x = 92,882,615,998.17/359,284.17
  6. Step 6: Final answer
    x = 258,521.31

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1.5x scale

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.