Home / 254,877.40-381,878.70-166,085.20

Finding the Fourth Proportional to 254,877.40, 381,878.70 and 166,085.20

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Solution

The fourth proportional to 254,877.40, 381,878.70 and 166,085.20 is: 248,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,877.40 : 381,878.70 = 166,085.20 : x
  2. Step 2: Convert to fraction form
    254,877.40/381,878.70 = 166,085.20/x
  3. Step 3: Cross multiply
    254,877.40x = 381,878.70 × 166,085.20
  4. Step 4: Simplify right side
    254,877.40x = 63,424,400,265.24
  5. Step 5: Solve for x
    x = 63,424,400,265.24/254,877.40
  6. Step 6: Final answer
    x = 248,842.78

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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.