Home / 257,878.20-387,253.50-168,073.44

Finding the Fourth Proportional to 257,878.20, 387,253.50 and 168,073.44

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Solution

The fourth proportional to 257,878.20, 387,253.50 and 168,073.44 is: 252,394.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,878.20 : 387,253.50 = 168,073.44 : x
  2. Step 2: Convert to fraction form
    257,878.20/387,253.50 = 168,073.44/x
  3. Step 3: Cross multiply
    257,878.20x = 387,253.50 × 168,073.44
  4. Step 4: Simplify right side
    257,878.20x = 65,087,027,897.04
  5. Step 5: Solve for x
    x = 65,087,027,897.04/257,878.20
  6. Step 6: Final answer
    x = 252,394.46

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1.5x scale

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.