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Finding the Fourth Proportional to 254,832.98, 382,010.72 and 86,235.27

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Solution

The fourth proportional to 254,832.98, 382,010.72 and 86,235.27 is: 129,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,832.98 : 382,010.72 = 86,235.27 : x
  2. Step 2: Convert to fraction form
    254,832.98/382,010.72 = 86,235.27/x
  3. Step 3: Cross multiply
    254,832.98x = 382,010.72 × 86,235.27
  4. Step 4: Simplify right side
    254,832.98x = 32,942,795,718.38
  5. Step 5: Solve for x
    x = 32,942,795,718.38/254,832.98
  6. Step 6: Final answer
    x = 129,272.11

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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.