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Finding the Fourth Proportional to 239,738.40, 359,607.60 and 134,543.70

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Solution

The fourth proportional to 239,738.40, 359,607.60 and 134,543.70 is: 201,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,738.40 : 359,607.60 = 134,543.70 : x
  2. Step 2: Convert to fraction form
    239,738.40/359,607.60 = 134,543.70/x
  3. Step 3: Cross multiply
    239,738.40x = 359,607.60 × 134,543.70
  4. Step 4: Simplify right side
    239,738.40x = 48,382,937,052.12
  5. Step 5: Solve for x
    x = 48,382,937,052.12/239,738.40
  6. Step 6: Final answer
    x = 201,815.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.