Home / 254,708.48-382,040.70-86,225.21

Finding the Fourth Proportional to 254,708.48, 382,040.70 and 86,225.21

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Solution

The fourth proportional to 254,708.48, 382,040.70 and 86,225.21 is: 129,330.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,708.48 : 382,040.70 = 86,225.21 : x
  2. Step 2: Convert to fraction form
    254,708.48/382,040.70 = 86,225.21/x
  3. Step 3: Cross multiply
    254,708.48x = 382,040.70 × 86,225.21
  4. Step 4: Simplify right side
    254,708.48x = 32,941,539,586.05
  5. Step 5: Solve for x
    x = 32,941,539,586.05/254,708.48
  6. Step 6: Final answer
    x = 129,330.36

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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.