Home / 331,727.40-497,176.38-261,328.68

Finding the Fourth Proportional to 331,727.40, 497,176.38 and 261,328.68

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Solution

The fourth proportional to 331,727.40, 497,176.38 and 261,328.68 is: 391,666.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,727.40 : 497,176.38 = 261,328.68 : x
  2. Step 2: Convert to fraction form
    331,727.40/497,176.38 = 261,328.68/x
  3. Step 3: Cross multiply
    331,727.40x = 497,176.38 × 261,328.68
  4. Step 4: Simplify right side
    331,727.40x = 129,926,447,112.58
  5. Step 5: Solve for x
    x = 129,926,447,112.58/331,727.40
  6. Step 6: Final answer
    x = 391,666.31

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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.