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Finding the Fourth Proportional to 247,369.76, 341,370.36 and 139,937.52

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Solution

The fourth proportional to 247,369.76, 341,370.36 and 139,937.52 is: 193,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,369.76 : 341,370.36 = 139,937.52 : x
  2. Step 2: Convert to fraction form
    247,369.76/341,370.36 = 139,937.52/x
  3. Step 3: Cross multiply
    247,369.76x = 341,370.36 × 139,937.52
  4. Step 4: Simplify right side
    247,369.76x = 47,770,521,579.91
  5. Step 5: Solve for x
    x = 47,770,521,579.91/247,369.76
  6. Step 6: Final answer
    x = 193,113.83

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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.