Home / 347,108.18-479,012.81-203,870.61

Finding the Fourth Proportional to 347,108.18, 479,012.81 and 203,870.61

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Solution

The fourth proportional to 347,108.18, 479,012.81 and 203,870.61 is: 281,343.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,108.18 : 479,012.81 = 203,870.61 : x
  2. Step 2: Convert to fraction form
    347,108.18/479,012.81 = 203,870.61/x
  3. Step 3: Cross multiply
    347,108.18x = 479,012.81 × 203,870.61
  4. Step 4: Simplify right side
    347,108.18x = 97,656,632,753.16
  5. Step 5: Solve for x
    x = 97,656,632,753.16/347,108.18
  6. Step 6: Final answer
    x = 281,343.51

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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.