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Finding the Fourth Proportional to 342,416.60, 513,712.38 and 131,998.04

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Solution

The fourth proportional to 342,416.60, 513,712.38 and 131,998.04 is: 198,030.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,416.60 : 513,712.38 = 131,998.04 : x
  2. Step 2: Convert to fraction form
    342,416.60/513,712.38 = 131,998.04/x
  3. Step 3: Cross multiply
    342,416.60x = 513,712.38 × 131,998.04
  4. Step 4: Simplify right side
    342,416.60x = 67,809,027,283.74
  5. Step 5: Solve for x
    x = 67,809,027,283.74/342,416.60
  6. Step 6: Final answer
    x = 198,030.78

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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.