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Finding the Fourth Proportional to 328,743.70, 492,775.35 and 178,666.90

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Solution

The fourth proportional to 328,743.70, 492,775.35 and 178,666.90 is: 267,815.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,743.70 : 492,775.35 = 178,666.90 : x
  2. Step 2: Convert to fraction form
    328,743.70/492,775.35 = 178,666.90/x
  3. Step 3: Cross multiply
    328,743.70x = 492,775.35 × 178,666.90
  4. Step 4: Simplify right side
    328,743.70x = 88,042,644,180.92
  5. Step 5: Solve for x
    x = 88,042,644,180.92/328,743.70
  6. Step 6: Final answer
    x = 267,815.46

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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.