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Finding the Fourth Proportional to 359,346.60, 539,019.90 and 330,316.20

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Solution

The fourth proportional to 359,346.60, 539,019.90 and 330,316.20 is: 495,474.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,346.60 : 539,019.90 = 330,316.20 : x
  2. Step 2: Convert to fraction form
    359,346.60/539,019.90 = 330,316.20/x
  3. Step 3: Cross multiply
    359,346.60x = 539,019.90 × 330,316.20
  4. Step 4: Simplify right side
    359,346.60x = 178,047,005,092.38
  5. Step 5: Solve for x
    x = 178,047,005,092.38/359,346.60
  6. Step 6: Final answer
    x = 495,474.30

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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.