Home / 254,175.48-380,997.18-85,637.57

Finding the Fourth Proportional to 254,175.48, 380,997.18 and 85,637.57

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Solution

The fourth proportional to 254,175.48, 380,997.18 and 85,637.57 is: 128,366.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,175.48 : 380,997.18 = 85,637.57 : x
  2. Step 2: Convert to fraction form
    254,175.48/380,997.18 = 85,637.57/x
  3. Step 3: Cross multiply
    254,175.48x = 380,997.18 × 85,637.57
  4. Step 4: Simplify right side
    254,175.48x = 32,627,672,672.05
  5. Step 5: Solve for x
    x = 32,627,672,672.05/254,175.48
  6. Step 6: Final answer
    x = 128,366.72

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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.