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Finding the Fourth Proportional to 268,458.70, 370,475.40 and 145,951.34

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Solution

The fourth proportional to 268,458.70, 370,475.40 and 145,951.34 is: 201,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,458.70 : 370,475.40 = 145,951.34 : x
  2. Step 2: Convert to fraction form
    268,458.70/370,475.40 = 145,951.34/x
  3. Step 3: Cross multiply
    268,458.70x = 370,475.40 × 145,951.34
  4. Step 4: Simplify right side
    268,458.70x = 54,071,381,067.04
  5. Step 5: Solve for x
    x = 54,071,381,067.04/268,458.70
  6. Step 6: Final answer
    x = 201,414.15

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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.