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Finding the Fourth Proportional to 421,099.04, 581,092 and 230,113.92

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Solution

The fourth proportional to 421,099.04, 581,092 and 230,113.92 is: 317,543.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,099.04 : 581,092 = 230,113.92 : x
  2. Step 2: Convert to fraction form
    421,099.04/581,092 = 230,113.92/x
  3. Step 3: Cross multiply
    421,099.04x = 581,092 × 230,113.92
  4. Step 4: Simplify right side
    421,099.04x = 133,717,358,000.64
  5. Step 5: Solve for x
    x = 133,717,358,000.64/421,099.04
  6. Step 6: Final answer
    x = 317,543.73

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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.