Home / 328,742.20-492,773.10-178,665.40

Finding the Fourth Proportional to 328,742.20, 492,773.10 and 178,665.40

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Solution

The fourth proportional to 328,742.20, 492,773.10 and 178,665.40 is: 267,813.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,742.20 : 492,773.10 = 178,665.40 : x
  2. Step 2: Convert to fraction form
    328,742.20/492,773.10 = 178,665.40/x
  3. Step 3: Cross multiply
    328,742.20x = 492,773.10 × 178,665.40
  4. Step 4: Simplify right side
    328,742.20x = 88,041,503,020.74
  5. Step 5: Solve for x
    x = 88,041,503,020.74/328,742.20
  6. Step 6: Final answer
    x = 267,813.21

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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.