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Finding the Fourth Proportional to 328,098.80, 492,731.40 and 239,452.40

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Solution

The fourth proportional to 328,098.80, 492,731.40 and 239,452.40 is: 359,604.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,098.80 : 492,731.40 = 239,452.40 : x
  2. Step 2: Convert to fraction form
    328,098.80/492,731.40 = 239,452.40/x
  3. Step 3: Cross multiply
    328,098.80x = 492,731.40 × 239,452.40
  4. Step 4: Simplify right side
    328,098.80x = 117,985,716,285.36
  5. Step 5: Solve for x
    x = 117,985,716,285.36/328,098.80
  6. Step 6: Final answer
    x = 359,604.23

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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.