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Finding the Fourth Proportional to 342,911.48, 473,170.97 and 189,911.89

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Solution

The fourth proportional to 342,911.48, 473,170.97 and 189,911.89 is: 262,052.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,911.48 : 473,170.97 = 189,911.89 : x
  2. Step 2: Convert to fraction form
    342,911.48/473,170.97 = 189,911.89/x
  3. Step 3: Cross multiply
    342,911.48x = 473,170.97 × 189,911.89
  4. Step 4: Simplify right side
    342,911.48x = 89,860,793,203.82
  5. Step 5: Solve for x
    x = 89,860,793,203.82/342,911.48
  6. Step 6: Final answer
    x = 262,052.45

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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.