Home / 382,125.20-526,421.36-267,188.78

Finding the Fourth Proportional to 382,125.20, 526,421.36 and 267,188.78

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Solution

The fourth proportional to 382,125.20, 526,421.36 and 267,188.78 is: 368,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,125.20 : 526,421.36 = 267,188.78 : x
  2. Step 2: Convert to fraction form
    382,125.20/526,421.36 = 267,188.78/x
  3. Step 3: Cross multiply
    382,125.20x = 526,421.36 × 267,188.78
  4. Step 4: Simplify right side
    382,125.20x = 140,653,882,928.37
  5. Step 5: Solve for x
    x = 140,653,882,928.37/382,125.20
  6. Step 6: Final answer
    x = 368,083.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.