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Finding the Fourth Proportional to 543,708.10, 815,562.15 and 228,780.10

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Solution

The fourth proportional to 543,708.10, 815,562.15 and 228,780.10 is: 343,170.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,708.10 : 815,562.15 = 228,780.10 : x
  2. Step 2: Convert to fraction form
    543,708.10/815,562.15 = 228,780.10/x
  3. Step 3: Cross multiply
    543,708.10x = 815,562.15 × 228,780.10
  4. Step 4: Simplify right side
    543,708.10x = 186,584,390,233.22
  5. Step 5: Solve for x
    x = 186,584,390,233.22/543,708.10
  6. Step 6: Final answer
    x = 343,170.15

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Similar ratio
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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.