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Finding the Fourth Proportional to 267,210.90, 400,698.90 and 80,178.66

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Solution

The fourth proportional to 267,210.90, 400,698.90 and 80,178.66 is: 120,232.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,210.90 : 400,698.90 = 80,178.66 : x
  2. Step 2: Convert to fraction form
    267,210.90/400,698.90 = 80,178.66/x
  3. Step 3: Cross multiply
    267,210.90x = 400,698.90 × 80,178.66
  4. Step 4: Simplify right side
    267,210.90x = 32,127,500,865.47
  5. Step 5: Solve for x
    x = 32,127,500,865.47/267,210.90
  6. Step 6: Final answer
    x = 120,232.75

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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.