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Finding the Fourth Proportional to 268,432.75, 370,427.75 and 147,573.15

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Solution

The fourth proportional to 268,432.75, 370,427.75 and 147,573.15 is: 203,645.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,432.75 : 370,427.75 = 147,573.15 : x
  2. Step 2: Convert to fraction form
    268,432.75/370,427.75 = 147,573.15/x
  3. Step 3: Cross multiply
    268,432.75x = 370,427.75 × 147,573.15
  4. Step 4: Simplify right side
    268,432.75x = 54,665,189,914.91
  5. Step 5: Solve for x
    x = 54,665,189,914.91/268,432.75
  6. Step 6: Final answer
    x = 203,645.75

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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.