Home / 262,207.20-393,310.80-72,667.20

Finding the Fourth Proportional to 262,207.20, 393,310.80 and 72,667.20

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Solution

The fourth proportional to 262,207.20, 393,310.80 and 72,667.20 is: 109,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,207.20 : 393,310.80 = 72,667.20 : x
  2. Step 2: Convert to fraction form
    262,207.20/393,310.80 = 72,667.20/x
  3. Step 3: Cross multiply
    262,207.20x = 393,310.80 × 72,667.20
  4. Step 4: Simplify right side
    262,207.20x = 28,580,794,565.76
  5. Step 5: Solve for x
    x = 28,580,794,565.76/262,207.20
  6. Step 6: Final answer
    x = 109,000.80

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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.