Home / 260,644.55-390,999.02-92,130.12

Finding the Fourth Proportional to 260,644.55, 390,999.02 and 92,130.12

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Solution

The fourth proportional to 260,644.55, 390,999.02 and 92,130.12 is: 138,206.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,644.55 : 390,999.02 = 92,130.12 : x
  2. Step 2: Convert to fraction form
    260,644.55/390,999.02 = 92,130.12/x
  3. Step 3: Cross multiply
    260,644.55x = 390,999.02 × 92,130.12
  4. Step 4: Simplify right side
    260,644.55x = 36,022,786,171.83
  5. Step 5: Solve for x
    x = 36,022,786,171.83/260,644.55
  6. Step 6: Final answer
    x = 138,206.56

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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.