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Finding the Fourth Proportional to 342,718.62, 472,635.63 and 235,098.78

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Solution

The fourth proportional to 342,718.62, 472,635.63 and 235,098.78 is: 324,219.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,718.62 : 472,635.63 = 235,098.78 : x
  2. Step 2: Convert to fraction form
    342,718.62/472,635.63 = 235,098.78/x
  3. Step 3: Cross multiply
    342,718.62x = 472,635.63 × 235,098.78
  4. Step 4: Simplify right side
    342,718.62x = 111,116,059,997.53
  5. Step 5: Solve for x
    x = 111,116,059,997.53/342,718.62
  6. Step 6: Final answer
    x = 324,219.50

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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.