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Finding the Fourth Proportional to 268,486.51, 370,512.77 and 147,635.62

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Solution

The fourth proportional to 268,486.51, 370,512.77 and 147,635.62 is: 203,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,486.51 : 370,512.77 = 147,635.62 : x
  2. Step 2: Convert to fraction form
    268,486.51/370,512.77 = 147,635.62/x
  3. Step 3: Cross multiply
    268,486.51x = 370,512.77 × 147,635.62
  4. Step 4: Simplify right side
    268,486.51x = 54,700,882,516.87
  5. Step 5: Solve for x
    x = 54,700,882,516.87/268,486.51
  6. Step 6: Final answer
    x = 203,737.92

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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.