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Finding the Fourth Proportional to 268,471.33, 370,491.82 and 147,620.40

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Solution

The fourth proportional to 268,471.33, 370,491.82 and 147,620.40 is: 203,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,471.33 : 370,491.82 = 147,620.40 : x
  2. Step 2: Convert to fraction form
    268,471.33/370,491.82 = 147,620.40/x
  3. Step 3: Cross multiply
    268,471.33x = 370,491.82 × 147,620.40
  4. Step 4: Simplify right side
    268,471.33x = 54,692,149,139.77
  5. Step 5: Solve for x
    x = 54,692,149,139.77/268,471.33
  6. Step 6: Final answer
    x = 203,716.91

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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.