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Finding the Fourth Proportional to 359,000.30, 538,500.45 and 219,032.30

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Solution

The fourth proportional to 359,000.30, 538,500.45 and 219,032.30 is: 328,548.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,000.30 : 538,500.45 = 219,032.30 : x
  2. Step 2: Convert to fraction form
    359,000.30/538,500.45 = 219,032.30/x
  3. Step 3: Cross multiply
    359,000.30x = 538,500.45 × 219,032.30
  4. Step 4: Simplify right side
    359,000.30x = 117,948,992,114.54
  5. Step 5: Solve for x
    x = 117,948,992,114.54/359,000.30
  6. Step 6: Final answer
    x = 328,548.45

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Similar ratio
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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.