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Finding the Fourth Proportional to 543,225.86, 815,638.68 and 303,808.83

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Solution

The fourth proportional to 543,225.86, 815,638.68 and 303,808.83 is: 456,160.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,225.86 : 815,638.68 = 303,808.83 : x
  2. Step 2: Convert to fraction form
    543,225.86/815,638.68 = 303,808.83/x
  3. Step 3: Cross multiply
    543,225.86x = 815,638.68 × 303,808.83
  4. Step 4: Simplify right side
    543,225.86x = 247,798,235,890.27
  5. Step 5: Solve for x
    x = 247,798,235,890.27/543,225.86
  6. Step 6: Final answer
    x = 456,160.60

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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.