Home / 421,846.20-582,139.98-230,855.76

Finding the Fourth Proportional to 421,846.20, 582,139.98 and 230,855.76

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Solution

The fourth proportional to 421,846.20, 582,139.98 and 230,855.76 is: 318,576.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,846.20 : 582,139.98 = 230,855.76 : x
  2. Step 2: Convert to fraction form
    421,846.20/582,139.98 = 230,855.76/x
  3. Step 3: Cross multiply
    421,846.20x = 582,139.98 × 230,855.76
  4. Step 4: Simplify right side
    421,846.20x = 134,390,367,509.29
  5. Step 5: Solve for x
    x = 134,390,367,509.29/421,846.20
  6. Step 6: Final answer
    x = 318,576.69

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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.