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Finding the Fourth Proportional to 268,672.38, 370,770.98 and 153,948.75

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Solution

The fourth proportional to 268,672.38, 370,770.98 and 153,948.75 is: 212,451.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,672.38 : 370,770.98 = 153,948.75 : x
  2. Step 2: Convert to fraction form
    268,672.38/370,770.98 = 153,948.75/x
  3. Step 3: Cross multiply
    268,672.38x = 370,770.98 × 153,948.75
  4. Step 4: Simplify right side
    268,672.38x = 57,079,728,137.53
  5. Step 5: Solve for x
    x = 57,079,728,137.53/268,672.38
  6. Step 6: Final answer
    x = 212,451.05

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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.