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Finding the Fourth Proportional to 547,437.54, 821,234.45 and 168,389.89

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Solution

The fourth proportional to 547,437.54, 821,234.45 and 168,389.89 is: 252,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,437.54 : 821,234.45 = 168,389.89 : x
  2. Step 2: Convert to fraction form
    547,437.54/821,234.45 = 168,389.89/x
  3. Step 3: Cross multiply
    547,437.54x = 821,234.45 × 168,389.89
  4. Step 4: Simplify right side
    547,437.54x = 138,287,576,120.41
  5. Step 5: Solve for x
    x = 138,287,576,120.41/547,437.54
  6. Step 6: Final answer
    x = 252,608.87

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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.