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Finding the Fourth Proportional to 186,751.32, 280,144.08 and 74,404.32

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Solution

The fourth proportional to 186,751.32, 280,144.08 and 74,404.32 is: 111,613.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,751.32 : 280,144.08 = 74,404.32 : x
  2. Step 2: Convert to fraction form
    186,751.32/280,144.08 = 74,404.32/x
  3. Step 3: Cross multiply
    186,751.32x = 280,144.08 × 74,404.32
  4. Step 4: Simplify right side
    186,751.32x = 20,843,929,774.43
  5. Step 5: Solve for x
    x = 20,843,929,774.43/186,751.32
  6. Step 6: Final answer
    x = 111,613.29

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1.5x scale

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.