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Finding the Fourth Proportional to 610,012.62, 915,079.77 and 225,864.03

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Solution

The fourth proportional to 610,012.62, 915,079.77 and 225,864.03 is: 338,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,012.62 : 915,079.77 = 225,864.03 : x
  2. Step 2: Convert to fraction form
    610,012.62/915,079.77 = 225,864.03/x
  3. Step 3: Cross multiply
    610,012.62x = 915,079.77 × 225,864.03
  4. Step 4: Simplify right side
    610,012.62x = 206,683,604,623.67
  5. Step 5: Solve for x
    x = 206,683,604,623.67/610,012.62
  6. Step 6: Final answer
    x = 338,818.57

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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.