Home / 257,022.54-354,691.05-143,845.29

Finding the Fourth Proportional to 257,022.54, 354,691.05 and 143,845.29

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Solution

The fourth proportional to 257,022.54, 354,691.05 and 143,845.29 is: 198,506.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,022.54 : 354,691.05 = 143,845.29 : x
  2. Step 2: Convert to fraction form
    257,022.54/354,691.05 = 143,845.29/x
  3. Step 3: Cross multiply
    257,022.54x = 354,691.05 × 143,845.29
  4. Step 4: Simplify right side
    257,022.54x = 51,020,636,947.65
  5. Step 5: Solve for x
    x = 51,020,636,947.65/257,022.54
  6. Step 6: Final answer
    x = 198,506.47

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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.