Home / 291,664.20-437,442.30-81,258.60

Finding the Fourth Proportional to 291,664.20, 437,442.30 and 81,258.60

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Solution

The fourth proportional to 291,664.20, 437,442.30 and 81,258.60 is: 121,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,664.20 : 437,442.30 = 81,258.60 : x
  2. Step 2: Convert to fraction form
    291,664.20/437,442.30 = 81,258.60/x
  3. Step 3: Cross multiply
    291,664.20x = 437,442.30 × 81,258.60
  4. Step 4: Simplify right side
    291,664.20x = 35,545,948,878.78
  5. Step 5: Solve for x
    x = 35,545,948,878.78/291,664.20
  6. Step 6: Final answer
    x = 121,872.86

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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.