Home / 257,833.13-355,802.90-143,111.46

Finding the Fourth Proportional to 257,833.13, 355,802.90 and 143,111.46

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Solution

The fourth proportional to 257,833.13, 355,802.90 and 143,111.46 is: 197,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,833.13 : 355,802.90 = 143,111.46 : x
  2. Step 2: Convert to fraction form
    257,833.13/355,802.90 = 143,111.46/x
  3. Step 3: Cross multiply
    257,833.13x = 355,802.90 × 143,111.46
  4. Step 4: Simplify right side
    257,833.13x = 50,919,471,775.68
  5. Step 5: Solve for x
    x = 50,919,471,775.68/257,833.13
  6. Step 6: Final answer
    x = 197,490.03

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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.