Home / 245,128.68-338,225.10-143,107.92

Finding the Fourth Proportional to 245,128.68, 338,225.10 and 143,107.92

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Solution

The fourth proportional to 245,128.68, 338,225.10 and 143,107.92 is: 197,458.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,128.68 : 338,225.10 = 143,107.92 : x
  2. Step 2: Convert to fraction form
    245,128.68/338,225.10 = 143,107.92/x
  3. Step 3: Cross multiply
    245,128.68x = 338,225.10 × 143,107.92
  4. Step 4: Simplify right side
    245,128.68x = 48,402,690,552.79
  5. Step 5: Solve for x
    x = 48,402,690,552.79/245,128.68
  6. Step 6: Final answer
    x = 197,458.29

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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.