Home / 308,285.04-425,432.12-172,318.94

Finding the Fourth Proportional to 308,285.04, 425,432.12 and 172,318.94

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Solution

The fourth proportional to 308,285.04, 425,432.12 and 172,318.94 is: 237,799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,285.04 : 425,432.12 = 172,318.94 : x
  2. Step 2: Convert to fraction form
    308,285.04/425,432.12 = 172,318.94/x
  3. Step 3: Cross multiply
    308,285.04x = 425,432.12 × 172,318.94
  4. Step 4: Simplify right side
    308,285.04x = 73,310,011,960.35
  5. Step 5: Solve for x
    x = 73,310,011,960.35/308,285.04
  6. Step 6: Final answer
    x = 237,799.45

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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.