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Finding the Fourth Proportional to 283,324.88, 390,989.76 and 162,470.72

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Solution

The fourth proportional to 283,324.88, 390,989.76 and 162,470.72 is: 224,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,324.88 : 390,989.76 = 162,470.72 : x
  2. Step 2: Convert to fraction form
    283,324.88/390,989.76 = 162,470.72/x
  3. Step 3: Cross multiply
    283,324.88x = 390,989.76 × 162,470.72
  4. Step 4: Simplify right side
    283,324.88x = 63,524,387,819.83
  5. Step 5: Solve for x
    x = 63,524,387,819.83/283,324.88
  6. Step 6: Final answer
    x = 224,210.41

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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.