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Finding the Fourth Proportional to 342,308.03, 472,348.74 and 189,321.92

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Solution

The fourth proportional to 342,308.03, 472,348.74 and 189,321.92 is: 261,244.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,308.03 : 472,348.74 = 189,321.92 : x
  2. Step 2: Convert to fraction form
    342,308.03/472,348.74 = 189,321.92/x
  3. Step 3: Cross multiply
    342,308.03x = 472,348.74 × 189,321.92
  4. Step 4: Simplify right side
    342,308.03x = 89,425,968,624.96
  5. Step 5: Solve for x
    x = 89,425,968,624.96/342,308.03
  6. Step 6: Final answer
    x = 261,244.14

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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.