Home / 266,721.27-399,998.67-89,186.84

Finding the Fourth Proportional to 266,721.27, 399,998.67 and 89,186.84

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Solution

The fourth proportional to 266,721.27, 399,998.67 and 89,186.84 is: 133,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,721.27 : 399,998.67 = 89,186.84 : x
  2. Step 2: Convert to fraction form
    266,721.27/399,998.67 = 89,186.84/x
  3. Step 3: Cross multiply
    266,721.27x = 399,998.67 × 89,186.84
  4. Step 4: Simplify right side
    266,721.27x = 35,674,616,547.05
  5. Step 5: Solve for x
    x = 35,674,616,547.05/266,721.27
  6. Step 6: Final answer
    x = 133,752.43

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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.