Home / 343,432.20-515,148.30-231,457.80

Finding the Fourth Proportional to 343,432.20, 515,148.30 and 231,457.80

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Solution

The fourth proportional to 343,432.20, 515,148.30 and 231,457.80 is: 347,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,432.20 : 515,148.30 = 231,457.80 : x
  2. Step 2: Convert to fraction form
    343,432.20/515,148.30 = 231,457.80/x
  3. Step 3: Cross multiply
    343,432.20x = 515,148.30 × 231,457.80
  4. Step 4: Simplify right side
    343,432.20x = 119,235,092,191.74
  5. Step 5: Solve for x
    x = 119,235,092,191.74/343,432.20
  6. Step 6: Final answer
    x = 347,186.70

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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.