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Finding the Fourth Proportional to 359,492.60, 538,806.90 and 149,022.20

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Solution

The fourth proportional to 359,492.60, 538,806.90 and 149,022.20 is: 223,354.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,492.60 : 538,806.90 = 149,022.20 : x
  2. Step 2: Convert to fraction form
    359,492.60/538,806.90 = 149,022.20/x
  3. Step 3: Cross multiply
    359,492.60x = 538,806.90 × 149,022.20
  4. Step 4: Simplify right side
    359,492.60x = 80,294,189,613.18
  5. Step 5: Solve for x
    x = 80,294,189,613.18/359,492.60
  6. Step 6: Final answer
    x = 223,354.22

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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.