Home / 256,600.09-385,249.18-144,359.29

Finding the Fourth Proportional to 256,600.09, 385,249.18 and 144,359.29

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Solution

The fourth proportional to 256,600.09, 385,249.18 and 144,359.29 is: 216,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,600.09 : 385,249.18 = 144,359.29 : x
  2. Step 2: Convert to fraction form
    256,600.09/385,249.18 = 144,359.29/x
  3. Step 3: Cross multiply
    256,600.09x = 385,249.18 × 144,359.29
  4. Step 4: Simplify right side
    256,600.09x = 55,614,298,097.88
  5. Step 5: Solve for x
    x = 55,614,298,097.88/256,600.09
  6. Step 6: Final answer
    x = 216,735.30

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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.