Home / 348,139.20-522,247.85-312,380.69

Finding the Fourth Proportional to 348,139.20, 522,247.85 and 312,380.69

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Solution

The fourth proportional to 348,139.20, 522,247.85 and 312,380.69 is: 468,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,139.20 : 522,247.85 = 312,380.69 : x
  2. Step 2: Convert to fraction form
    348,139.20/522,247.85 = 312,380.69/x
  3. Step 3: Cross multiply
    348,139.20x = 522,247.85 × 312,380.69
  4. Step 4: Simplify right side
    348,139.20x = 163,140,142,489.44
  5. Step 5: Solve for x
    x = 163,140,142,489.44/348,139.20
  6. Step 6: Final answer
    x = 468,606.07

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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.