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Finding the Fourth Proportional to 253,010.88, 379,516.32 and 86,800.32

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Solution

The fourth proportional to 253,010.88, 379,516.32 and 86,800.32 is: 130,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,010.88 : 379,516.32 = 86,800.32 : x
  2. Step 2: Convert to fraction form
    253,010.88/379,516.32 = 86,800.32/x
  3. Step 3: Cross multiply
    253,010.88x = 379,516.32 × 86,800.32
  4. Step 4: Simplify right side
    253,010.88x = 32,942,138,021.22
  5. Step 5: Solve for x
    x = 32,942,138,021.22/253,010.88
  6. Step 6: Final answer
    x = 130,200.48

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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.