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Finding the Fourth Proportional to 499,194.90, 748,901.70 and 199,600.20

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Solution

The fourth proportional to 499,194.90, 748,901.70 and 199,600.20 is: 299,444.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,194.90 : 748,901.70 = 199,600.20 : x
  2. Step 2: Convert to fraction form
    499,194.90/748,901.70 = 199,600.20/x
  3. Step 3: Cross multiply
    499,194.90x = 748,901.70 × 199,600.20
  4. Step 4: Simplify right side
    499,194.90x = 149,480,929,100.34
  5. Step 5: Solve for x
    x = 149,480,929,100.34/499,194.90
  6. Step 6: Final answer
    x = 299,444.02

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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.