Home / 257,243.29-354,879.33-155,236.15

Finding the Fourth Proportional to 257,243.29, 354,879.33 and 155,236.15

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Solution

The fourth proportional to 257,243.29, 354,879.33 and 155,236.15 is: 214,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,243.29 : 354,879.33 = 155,236.15 : x
  2. Step 2: Convert to fraction form
    257,243.29/354,879.33 = 155,236.15/x
  3. Step 3: Cross multiply
    257,243.29x = 354,879.33 × 155,236.15
  4. Step 4: Simplify right side
    257,243.29x = 55,090,098,769.05
  5. Step 5: Solve for x
    x = 55,090,098,769.05/257,243.29
  6. Step 6: Final answer
    x = 214,155.63

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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.