Home / 256,984.54-385,555.70-114,949.28

Finding the Fourth Proportional to 256,984.54, 385,555.70 and 114,949.28

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Solution

The fourth proportional to 256,984.54, 385,555.70 and 114,949.28 is: 172,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,984.54 : 385,555.70 = 114,949.28 : x
  2. Step 2: Convert to fraction form
    256,984.54/385,555.70 = 114,949.28/x
  3. Step 3: Cross multiply
    256,984.54x = 385,555.70 × 114,949.28
  4. Step 4: Simplify right side
    256,984.54x = 44,319,350,114.90
  5. Step 5: Solve for x
    x = 44,319,350,114.90/256,984.54
  6. Step 6: Final answer
    x = 172,459.21

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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.