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Finding the Fourth Proportional to 360,545.35, 540,436.66 and 135,808.55

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Solution

The fourth proportional to 360,545.35, 540,436.66 and 135,808.55 is: 203,569.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,545.35 : 540,436.66 = 135,808.55 : x
  2. Step 2: Convert to fraction form
    360,545.35/540,436.66 = 135,808.55/x
  3. Step 3: Cross multiply
    360,545.35x = 540,436.66 × 135,808.55
  4. Step 4: Simplify right side
    360,545.35x = 73,395,916,629.02
  5. Step 5: Solve for x
    x = 73,395,916,629.02/360,545.35
  6. Step 6: Final answer
    x = 203,569.17

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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.