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Finding the Fourth Proportional to 353,890, 488,358.36 and 192,741.52

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Solution

The fourth proportional to 353,890, 488,358.36 and 192,741.52 is: 265,977.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,890 : 488,358.36 = 192,741.52 : x
  2. Step 2: Convert to fraction form
    353,890/488,358.36 = 192,741.52/x
  3. Step 3: Cross multiply
    353,890x = 488,358.36 × 192,741.52
  4. Step 4: Simplify right side
    353,890x = 94,126,932,611.11
  5. Step 5: Solve for x
    x = 94,126,932,611.11/353,890
  6. Step 6: Final answer
    x = 265,977.94

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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.