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Finding the Fourth Proportional to 342,423.75, 472,546.40 and 191,520.75

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Solution

The fourth proportional to 342,423.75, 472,546.40 and 191,520.75 is: 264,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,423.75 : 472,546.40 = 191,520.75 : x
  2. Step 2: Convert to fraction form
    342,423.75/472,546.40 = 191,520.75/x
  3. Step 3: Cross multiply
    342,423.75x = 472,546.40 × 191,520.75
  4. Step 4: Simplify right side
    342,423.75x = 90,502,440,937.80
  5. Step 5: Solve for x
    x = 90,502,440,937.80/342,423.75
  6. Step 6: Final answer
    x = 264,299.54

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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.