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Finding the Fourth Proportional to 360,208.99, 540,592.40 and 135,773.61

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Solution

The fourth proportional to 360,208.99, 540,592.40 and 135,773.61 is: 203,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,208.99 : 540,592.40 = 135,773.61 : x
  2. Step 2: Convert to fraction form
    360,208.99/540,592.40 = 135,773.61/x
  3. Step 3: Cross multiply
    360,208.99x = 540,592.40 × 135,773.61
  4. Step 4: Simplify right side
    360,208.99x = 73,398,181,686.56
  5. Step 5: Solve for x
    x = 73,398,181,686.56/360,208.99
  6. Step 6: Final answer
    x = 203,765.55

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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.