Home / 443,490.96-664,932.80-159,175.20

Finding the Fourth Proportional to 443,490.96, 664,932.80 and 159,175.20

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Solution

The fourth proportional to 443,490.96, 664,932.80 and 159,175.20 is: 238,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,490.96 : 664,932.80 = 159,175.20 : x
  2. Step 2: Convert to fraction form
    443,490.96/664,932.80 = 159,175.20/x
  3. Step 3: Cross multiply
    443,490.96x = 664,932.80 × 159,175.20
  4. Step 4: Simplify right side
    443,490.96x = 105,840,811,426.56
  5. Step 5: Solve for x
    x = 105,840,811,426.56/443,490.96
  6. Step 6: Final answer
    x = 238,653.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.