Home / 224,422.83-309,715.35-128,935.71

Finding the Fourth Proportional to 224,422.83, 309,715.35 and 128,935.71

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Solution

The fourth proportional to 224,422.83, 309,715.35 and 128,935.71 is: 177,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,422.83 : 309,715.35 = 128,935.71 : x
  2. Step 2: Convert to fraction form
    224,422.83/309,715.35 = 128,935.71/x
  3. Step 3: Cross multiply
    224,422.83x = 309,715.35 × 128,935.71
  4. Step 4: Simplify right side
    224,422.83x = 39,933,368,550.15
  5. Step 5: Solve for x
    x = 39,933,368,550.15/224,422.83
  6. Step 6: Final answer
    x = 177,938.08

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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.