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Finding the Fourth Proportional to 281,909.04, 389,238.64 and 181,482

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Solution

The fourth proportional to 281,909.04, 389,238.64 and 181,482 is: 250,576.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,909.04 : 389,238.64 = 181,482 : x
  2. Step 2: Convert to fraction form
    281,909.04/389,238.64 = 181,482/x
  3. Step 3: Cross multiply
    281,909.04x = 389,238.64 × 181,482
  4. Step 4: Simplify right side
    281,909.04x = 70,639,806,864.48
  5. Step 5: Solve for x
    x = 70,639,806,864.48/281,909.04
  6. Step 6: Final answer
    x = 250,576.59

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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.