Home / 254,860.47-382,264.27-86,376.42

Finding the Fourth Proportional to 254,860.47, 382,264.27 and 86,376.42

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Solution

The fourth proportional to 254,860.47, 382,264.27 and 86,376.42 is: 129,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,860.47 : 382,264.27 = 86,376.42 : x
  2. Step 2: Convert to fraction form
    254,860.47/382,264.27 = 86,376.42/x
  3. Step 3: Cross multiply
    254,860.47x = 382,264.27 × 86,376.42
  4. Step 4: Simplify right side
    254,860.47x = 33,018,618,920.57
  5. Step 5: Solve for x
    x = 33,018,618,920.57/254,860.47
  6. Step 6: Final answer
    x = 129,555.67

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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.