Home / 318,193.60-477,288.24-107,979.52

Finding the Fourth Proportional to 318,193.60, 477,288.24 and 107,979.52

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Solution

The fourth proportional to 318,193.60, 477,288.24 and 107,979.52 is: 161,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,193.60 : 477,288.24 = 107,979.52 : x
  2. Step 2: Convert to fraction form
    318,193.60/477,288.24 = 107,979.52/x
  3. Step 3: Cross multiply
    318,193.60x = 477,288.24 × 107,979.52
  4. Step 4: Simplify right side
    318,193.60x = 51,537,355,056.84
  5. Step 5: Solve for x
    x = 51,537,355,056.84/318,193.60
  6. Step 6: Final answer
    x = 161,968.55

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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.