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Finding the Fourth Proportional to 545,529.44, 818,382.32 and 161,317.28

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Solution

The fourth proportional to 545,529.44, 818,382.32 and 161,317.28 is: 242,001.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,529.44 : 818,382.32 = 161,317.28 : x
  2. Step 2: Convert to fraction form
    545,529.44/818,382.32 = 161,317.28/x
  3. Step 3: Cross multiply
    545,529.44x = 818,382.32 × 161,317.28
  4. Step 4: Simplify right side
    545,529.44x = 132,019,209,862.49
  5. Step 5: Solve for x
    x = 132,019,209,862.49/545,529.44
  6. Step 6: Final answer
    x = 242,001.99

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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.