Home / 256,985.60-385,219.20-116,844.80

Finding the Fourth Proportional to 256,985.60, 385,219.20 and 116,844.80

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Solution

The fourth proportional to 256,985.60, 385,219.20 and 116,844.80 is: 175,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,985.60 : 385,219.20 = 116,844.80 : x
  2. Step 2: Convert to fraction form
    256,985.60/385,219.20 = 116,844.80/x
  3. Step 3: Cross multiply
    256,985.60x = 385,219.20 × 116,844.80
  4. Step 4: Simplify right side
    256,985.60x = 45,010,860,380.16
  5. Step 5: Solve for x
    x = 45,010,860,380.16/256,985.60
  6. Step 6: Final answer
    x = 175,149.35

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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.