Home / 308,632.20-425,951.64-172,673.70

Finding the Fourth Proportional to 308,632.20, 425,951.64 and 172,673.70

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Solution

The fourth proportional to 308,632.20, 425,951.64 and 172,673.70 is: 238,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,632.20 : 425,951.64 = 172,673.70 : x
  2. Step 2: Convert to fraction form
    308,632.20/425,951.64 = 172,673.70/x
  3. Step 3: Cross multiply
    308,632.20x = 425,951.64 × 172,673.70
  4. Step 4: Simplify right side
    308,632.20x = 73,550,645,699.87
  5. Step 5: Solve for x
    x = 73,550,645,699.87/308,632.20
  6. Step 6: Final answer
    x = 238,311.64

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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.