Home / 347,118.52-478,882.20-226,215.76

Finding the Fourth Proportional to 347,118.52, 478,882.20 and 226,215.76

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Solution

The fourth proportional to 347,118.52, 478,882.20 and 226,215.76 is: 312,085.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,118.52 : 478,882.20 = 226,215.76 : x
  2. Step 2: Convert to fraction form
    347,118.52/478,882.20 = 226,215.76/x
  3. Step 3: Cross multiply
    347,118.52x = 478,882.20 × 226,215.76
  4. Step 4: Simplify right side
    347,118.52x = 108,330,700,823.47
  5. Step 5: Solve for x
    x = 108,330,700,823.47/347,118.52
  6. Step 6: Final answer
    x = 312,085.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.