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Finding the Fourth Proportional to 268,478.25, 370,490.51 and 147,618.69

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Solution

The fourth proportional to 268,478.25, 370,490.51 and 147,618.69 is: 203,708.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,478.25 : 370,490.51 = 147,618.69 : x
  2. Step 2: Convert to fraction form
    268,478.25/370,490.51 = 147,618.69/x
  3. Step 3: Cross multiply
    268,478.25x = 370,490.51 × 147,618.69
  4. Step 4: Simplify right side
    268,478.25x = 54,691,323,005.54
  5. Step 5: Solve for x
    x = 54,691,323,005.54/268,478.25
  6. Step 6: Final answer
    x = 203,708.58

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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.