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Finding the Fourth Proportional to 280,950.80, 387,680.28 and 166,232.96

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Solution

The fourth proportional to 280,950.80, 387,680.28 and 166,232.96 is: 229,382.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,950.80 : 387,680.28 = 166,232.96 : x
  2. Step 2: Convert to fraction form
    280,950.80/387,680.28 = 166,232.96/x
  3. Step 3: Cross multiply
    280,950.80x = 387,680.28 × 166,232.96
  4. Step 4: Simplify right side
    280,950.80x = 64,445,240,478.03
  5. Step 5: Solve for x
    x = 64,445,240,478.03/280,950.80
  6. Step 6: Final answer
    x = 229,382.66

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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.