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Finding the Fourth Proportional to 308,350.64, 425,655.04 and 187,530.73

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Solution

The fourth proportional to 308,350.64, 425,655.04 and 187,530.73 is: 258,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,350.64 : 425,655.04 = 187,530.73 : x
  2. Step 2: Convert to fraction form
    308,350.64/425,655.04 = 187,530.73/x
  3. Step 3: Cross multiply
    308,350.64x = 425,655.04 × 187,530.73
  4. Step 4: Simplify right side
    308,350.64x = 79,823,400,379.38
  5. Step 5: Solve for x
    x = 79,823,400,379.38/308,350.64
  6. Step 6: Final answer
    x = 258,872.17

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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.