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Finding the Fourth Proportional to 259,144.24, 388,736.04 and 88,312.86

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Solution

The fourth proportional to 259,144.24, 388,736.04 and 88,312.86 is: 132,475.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,144.24 : 388,736.04 = 88,312.86 : x
  2. Step 2: Convert to fraction form
    259,144.24/388,736.04 = 88,312.86/x
  3. Step 3: Cross multiply
    259,144.24x = 388,736.04 × 88,312.86
  4. Step 4: Simplify right side
    259,144.24x = 34,330,389,970.19
  5. Step 5: Solve for x
    x = 34,330,389,970.19/259,144.24
  6. Step 6: Final answer
    x = 132,475.99

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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.