Home / 347,154.10-478,863.15-229,281.76

Finding the Fourth Proportional to 347,154.10, 478,863.15 and 229,281.76

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Solution

The fourth proportional to 347,154.10, 478,863.15 and 229,281.76 is: 316,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,154.10 : 478,863.15 = 229,281.76 : x
  2. Step 2: Convert to fraction form
    347,154.10/478,863.15 = 229,281.76/x
  3. Step 3: Cross multiply
    347,154.10x = 478,863.15 × 229,281.76
  4. Step 4: Simplify right side
    347,154.10x = 109,794,585,831.14
  5. Step 5: Solve for x
    x = 109,794,585,831.14/347,154.10
  6. Step 6: Final answer
    x = 316,270.46

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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.