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Finding the Fourth Proportional to 360,216.29, 540,339.01 and 135,553.07

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Solution

The fourth proportional to 360,216.29, 540,339.01 and 135,553.07 is: 203,335.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,216.29 : 540,339.01 = 135,553.07 : x
  2. Step 2: Convert to fraction form
    360,216.29/540,339.01 = 135,553.07/x
  3. Step 3: Cross multiply
    360,216.29x = 540,339.01 × 135,553.07
  4. Step 4: Simplify right side
    360,216.29x = 73,244,608,605.68
  5. Step 5: Solve for x
    x = 73,244,608,605.68/360,216.29
  6. Step 6: Final answer
    x = 203,335.08

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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.