Home / 321,921.60-482,882.40-255,566.40

Finding the Fourth Proportional to 321,921.60, 482,882.40 and 255,566.40

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Solution

The fourth proportional to 321,921.60, 482,882.40 and 255,566.40 is: 383,349.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,921.60 : 482,882.40 = 255,566.40 : x
  2. Step 2: Convert to fraction form
    321,921.60/482,882.40 = 255,566.40/x
  3. Step 3: Cross multiply
    321,921.60x = 482,882.40 × 255,566.40
  4. Step 4: Simplify right side
    321,921.60x = 123,408,516,591.36
  5. Step 5: Solve for x
    x = 123,408,516,591.36/321,921.60
  6. Step 6: Final answer
    x = 383,349.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.