Home / 257,822.73-355,816.80-143,112.15

Finding the Fourth Proportional to 257,822.73, 355,816.80 and 143,112.15

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Solution

The fourth proportional to 257,822.73, 355,816.80 and 143,112.15 is: 197,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,822.73 : 355,816.80 = 143,112.15 : x
  2. Step 2: Convert to fraction form
    257,822.73/355,816.80 = 143,112.15/x
  3. Step 3: Cross multiply
    257,822.73x = 355,816.80 × 143,112.15
  4. Step 4: Simplify right side
    257,822.73x = 50,921,707,254.12
  5. Step 5: Solve for x
    x = 50,921,707,254.12/257,822.73
  6. Step 6: Final answer
    x = 197,506.66

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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.