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Finding the Fourth Proportional to 308,292.32, 425,455.80 and 179,230.16

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Solution

The fourth proportional to 308,292.32, 425,455.80 and 179,230.16 is: 247,344.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,292.32 : 425,455.80 = 179,230.16 : x
  2. Step 2: Convert to fraction form
    308,292.32/425,455.80 = 179,230.16/x
  3. Step 3: Cross multiply
    308,292.32x = 425,455.80 × 179,230.16
  4. Step 4: Simplify right side
    308,292.32x = 76,254,511,106.93
  5. Step 5: Solve for x
    x = 76,254,511,106.93/308,292.32
  6. Step 6: Final answer
    x = 247,344.83

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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.