Home / 212,289.60-318,342.24-64,511.04

Finding the Fourth Proportional to 212,289.60, 318,342.24 and 64,511.04

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Solution

The fourth proportional to 212,289.60, 318,342.24 and 64,511.04 is: 96,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,289.60 : 318,342.24 = 64,511.04 : x
  2. Step 2: Convert to fraction form
    212,289.60/318,342.24 = 64,511.04/x
  3. Step 3: Cross multiply
    212,289.60x = 318,342.24 × 64,511.04
  4. Step 4: Simplify right side
    212,289.60x = 20,536,588,978.33
  5. Step 5: Solve for x
    x = 20,536,588,978.33/212,289.60
  6. Step 6: Final answer
    x = 96,738.55

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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.