Home / 256,966.08-385,447.90-171,396.06

Finding the Fourth Proportional to 256,966.08, 385,447.90 and 171,396.06

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Solution

The fourth proportional to 256,966.08, 385,447.90 and 171,396.06 is: 257,093.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,966.08 : 385,447.90 = 171,396.06 : x
  2. Step 2: Convert to fraction form
    256,966.08/385,447.90 = 171,396.06/x
  3. Step 3: Cross multiply
    256,966.08x = 385,447.90 × 171,396.06
  4. Step 4: Simplify right side
    256,966.08x = 66,064,251,395.27
  5. Step 5: Solve for x
    x = 66,064,251,395.27/256,966.08
  6. Step 6: Final answer
    x = 257,093.28

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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.