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Finding the Fourth Proportional to 268,645.32, 370,718.84 and 147,778.94

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Solution

The fourth proportional to 268,645.32, 370,718.84 and 147,778.94 is: 203,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,645.32 : 370,718.84 = 147,778.94 : x
  2. Step 2: Convert to fraction form
    268,645.32/370,718.84 = 147,778.94/x
  3. Step 3: Cross multiply
    268,645.32x = 370,718.84 × 147,778.94
  4. Step 4: Simplify right side
    268,645.32x = 54,784,434,620.74
  5. Step 5: Solve for x
    x = 54,784,434,620.74/268,645.32
  6. Step 6: Final answer
    x = 203,928.49

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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.