Home / 231,406.20-347,109.30-126,430.20

Finding the Fourth Proportional to 231,406.20, 347,109.30 and 126,430.20

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Solution

The fourth proportional to 231,406.20, 347,109.30 and 126,430.20 is: 189,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,406.20 : 347,109.30 = 126,430.20 : x
  2. Step 2: Convert to fraction form
    231,406.20/347,109.30 = 126,430.20/x
  3. Step 3: Cross multiply
    231,406.20x = 347,109.30 × 126,430.20
  4. Step 4: Simplify right side
    231,406.20x = 43,885,098,220.86
  5. Step 5: Solve for x
    x = 43,885,098,220.86/231,406.20
  6. Step 6: Final answer
    x = 189,645.30

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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.