Home / 318,282.32-477,436.44-131,276

Finding the Fourth Proportional to 318,282.32, 477,436.44 and 131,276

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Solution

The fourth proportional to 318,282.32, 477,436.44 and 131,276 is: 196,919.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,282.32 : 477,436.44 = 131,276 : x
  2. Step 2: Convert to fraction form
    318,282.32/477,436.44 = 131,276/x
  3. Step 3: Cross multiply
    318,282.32x = 477,436.44 × 131,276
  4. Step 4: Simplify right side
    318,282.32x = 62,675,946,097.44
  5. Step 5: Solve for x
    x = 62,675,946,097.44/318,282.32
  6. Step 6: Final answer
    x = 196,919.35

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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.