Home / 318,801.96-439,942.38-180,979.70

Finding the Fourth Proportional to 318,801.96, 439,942.38 and 180,979.70

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Solution

The fourth proportional to 318,801.96, 439,942.38 and 180,979.70 is: 249,749.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,801.96 : 439,942.38 = 180,979.70 : x
  2. Step 2: Convert to fraction form
    318,801.96/439,942.38 = 180,979.70/x
  3. Step 3: Cross multiply
    318,801.96x = 439,942.38 × 180,979.70
  4. Step 4: Simplify right side
    318,801.96x = 79,620,639,949.69
  5. Step 5: Solve for x
    x = 79,620,639,949.69/318,801.96
  6. Step 6: Final answer
    x = 249,749.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.