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Finding the Fourth Proportional to 342,306.69, 472,377.40 and 189,344.76

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Solution

The fourth proportional to 342,306.69, 472,377.40 and 189,344.76 is: 261,292.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,306.69 : 472,377.40 = 189,344.76 : x
  2. Step 2: Convert to fraction form
    342,306.69/472,377.40 = 189,344.76/x
  3. Step 3: Cross multiply
    342,306.69x = 472,377.40 × 189,344.76
  4. Step 4: Simplify right side
    342,306.69x = 89,442,184,925.40
  5. Step 5: Solve for x
    x = 89,442,184,925.40/342,306.69
  6. Step 6: Final answer
    x = 261,292.54

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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.