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Finding the Fourth Proportional to 308,125.79, 425,174.51 and 180,754.91

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Solution

The fourth proportional to 308,125.79, 425,174.51 and 180,754.91 is: 249,418.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,125.79 : 425,174.51 = 180,754.91 : x
  2. Step 2: Convert to fraction form
    308,125.79/425,174.51 = 180,754.91/x
  3. Step 3: Cross multiply
    308,125.79x = 425,174.51 × 180,754.91
  4. Step 4: Simplify right side
    308,125.79x = 76,852,378,163.47
  5. Step 5: Solve for x
    x = 76,852,378,163.47/308,125.79
  6. Step 6: Final answer
    x = 249,418.85

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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.