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Finding the Fourth Proportional to 255,082.30, 382,295.40 and 155,136.40

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Solution

The fourth proportional to 255,082.30, 382,295.40 and 155,136.40 is: 232,505.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,082.30 : 382,295.40 = 155,136.40 : x
  2. Step 2: Convert to fraction form
    255,082.30/382,295.40 = 155,136.40/x
  3. Step 3: Cross multiply
    255,082.30x = 382,295.40 × 155,136.40
  4. Step 4: Simplify right side
    255,082.30x = 59,307,932,092.56
  5. Step 5: Solve for x
    x = 59,307,932,092.56/255,082.30
  6. Step 6: Final answer
    x = 232,505.09

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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.