Home / 421,200.12-581,247.62-230,214.87

Finding the Fourth Proportional to 421,200.12, 581,247.62 and 230,214.87

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Solution

The fourth proportional to 421,200.12, 581,247.62 and 230,214.87 is: 317,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,200.12 : 581,247.62 = 230,214.87 : x
  2. Step 2: Convert to fraction form
    421,200.12/581,247.62 = 230,214.87/x
  3. Step 3: Cross multiply
    421,200.12x = 581,247.62 × 230,214.87
  4. Step 4: Simplify right side
    421,200.12x = 133,811,844,125.04
  5. Step 5: Solve for x
    x = 133,811,844,125.04/421,200.12
  6. Step 6: Final answer
    x = 317,691.85

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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.