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Finding the Fourth Proportional to 177,378.89, 265,837.30 and 72,074.75

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Solution

The fourth proportional to 177,378.89, 265,837.30 and 72,074.75 is: 108,018.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,378.89 : 265,837.30 = 72,074.75 : x
  2. Step 2: Convert to fraction form
    177,378.89/265,837.30 = 72,074.75/x
  3. Step 3: Cross multiply
    177,378.89x = 265,837.30 × 72,074.75
  4. Step 4: Simplify right side
    177,378.89x = 19,160,156,938.18
  5. Step 5: Solve for x
    x = 19,160,156,938.18/177,378.89
  6. Step 6: Final answer
    x = 108,018.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.