Home / 352,916.22-486,984.85-199,921.65

Finding the Fourth Proportional to 352,916.22, 486,984.85 and 199,921.65

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Solution

The fourth proportional to 352,916.22, 486,984.85 and 199,921.65 is: 275,869.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,916.22 : 486,984.85 = 199,921.65 : x
  2. Step 2: Convert to fraction form
    352,916.22/486,984.85 = 199,921.65/x
  3. Step 3: Cross multiply
    352,916.22x = 486,984.85 × 199,921.65
  4. Step 4: Simplify right side
    352,916.22x = 97,358,812,302.08
  5. Step 5: Solve for x
    x = 97,358,812,302.08/352,916.22
  6. Step 6: Final answer
    x = 275,869.47

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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.