Home / 224,278.32-309,489.96-128,717.76

Finding the Fourth Proportional to 224,278.32, 309,489.96 and 128,717.76

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Solution

The fourth proportional to 224,278.32, 309,489.96 and 128,717.76 is: 177,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,278.32 : 309,489.96 = 128,717.76 : x
  2. Step 2: Convert to fraction form
    224,278.32/309,489.96 = 128,717.76/x
  3. Step 3: Cross multiply
    224,278.32x = 309,489.96 × 128,717.76
  4. Step 4: Simplify right side
    224,278.32x = 39,836,854,393.69
  5. Step 5: Solve for x
    x = 39,836,854,393.69/224,278.32
  6. Step 6: Final answer
    x = 177,622.40

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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.