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Finding the Fourth Proportional to 543,492.75, 815,328.24 and 223,557.90

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Solution

The fourth proportional to 543,492.75, 815,328.24 and 223,557.90 is: 335,373.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,492.75 : 815,328.24 = 223,557.90 : x
  2. Step 2: Convert to fraction form
    543,492.75/815,328.24 = 223,557.90/x
  3. Step 3: Cross multiply
    543,492.75x = 815,328.24 × 223,557.90
  4. Step 4: Simplify right side
    543,492.75x = 182,273,069,145.10
  5. Step 5: Solve for x
    x = 182,273,069,145.10/543,492.75
  6. Step 6: Final answer
    x = 335,373.51

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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.