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Finding the Fourth Proportional to 274,422.60, 378,575.10 and 177,657.57

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Solution

The fourth proportional to 274,422.60, 378,575.10 and 177,657.57 is: 245,084.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,422.60 : 378,575.10 = 177,657.57 : x
  2. Step 2: Convert to fraction form
    274,422.60/378,575.10 = 177,657.57/x
  3. Step 3: Cross multiply
    274,422.60x = 378,575.10 × 177,657.57
  4. Step 4: Simplify right side
    274,422.60x = 67,256,732,328.51
  5. Step 5: Solve for x
    x = 67,256,732,328.51/274,422.60
  6. Step 6: Final answer
    x = 245,084.52

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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.