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Finding the Fourth Proportional to 268,478.35, 370,508.78 and 147,628.37

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Solution

The fourth proportional to 268,478.35, 370,508.78 and 147,628.37 is: 203,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,478.35 : 370,508.78 = 147,628.37 : x
  2. Step 2: Convert to fraction form
    268,478.35/370,508.78 = 147,628.37/x
  3. Step 3: Cross multiply
    268,478.35x = 370,508.78 × 147,628.37
  4. Step 4: Simplify right side
    268,478.35x = 54,697,608,557.43
  5. Step 5: Solve for x
    x = 54,697,608,557.43/268,478.35
  6. Step 6: Final answer
    x = 203,731.92

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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.