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Finding the Fourth Proportional to 342,113.85, 472,108.95 and 191,224.89

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Solution

The fourth proportional to 342,113.85, 472,108.95 and 191,224.89 is: 263,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,113.85 : 472,108.95 = 191,224.89 : x
  2. Step 2: Convert to fraction form
    342,113.85/472,108.95 = 191,224.89/x
  3. Step 3: Cross multiply
    342,113.85x = 472,108.95 × 191,224.89
  4. Step 4: Simplify right side
    342,113.85x = 90,278,982,031.77
  5. Step 5: Solve for x
    x = 90,278,982,031.77/342,113.85
  6. Step 6: Final answer
    x = 263,885.79

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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.