Home / 421,775.17-582,049.71-230,788.55

Finding the Fourth Proportional to 421,775.17, 582,049.71 and 230,788.55

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Solution

The fourth proportional to 421,775.17, 582,049.71 and 230,788.55 is: 318,488.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,775.17 : 582,049.71 = 230,788.55 : x
  2. Step 2: Convert to fraction form
    421,775.17/582,049.71 = 230,788.55/x
  3. Step 3: Cross multiply
    421,775.17x = 582,049.71 × 230,788.55
  4. Step 4: Simplify right side
    421,775.17x = 134,330,410,053.95
  5. Step 5: Solve for x
    x = 134,330,410,053.95/421,775.17
  6. Step 6: Final answer
    x = 318,488.19

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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.