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Finding the Fourth Proportional to 360,012.20, 540,018.30 and 266,700.20

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Solution

The fourth proportional to 360,012.20, 540,018.30 and 266,700.20 is: 400,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,012.20 : 540,018.30 = 266,700.20 : x
  2. Step 2: Convert to fraction form
    360,012.20/540,018.30 = 266,700.20/x
  3. Step 3: Cross multiply
    360,012.20x = 540,018.30 × 266,700.20
  4. Step 4: Simplify right side
    360,012.20x = 144,022,988,613.66
  5. Step 5: Solve for x
    x = 144,022,988,613.66/360,012.20
  6. Step 6: Final answer
    x = 400,050.30

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Similar ratio
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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.