Home / 257,904.71-355,892.48-143,176.66

Finding the Fourth Proportional to 257,904.71, 355,892.48 and 143,176.66

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Solution

The fourth proportional to 257,904.71, 355,892.48 and 143,176.66 is: 197,574.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,904.71 : 355,892.48 = 143,176.66 : x
  2. Step 2: Convert to fraction form
    257,904.71/355,892.48 = 143,176.66/x
  3. Step 3: Cross multiply
    257,904.71x = 355,892.48 × 143,176.66
  4. Step 4: Simplify right side
    257,904.71x = 50,955,498,344.08
  5. Step 5: Solve for x
    x = 50,955,498,344.08/257,904.71
  6. Step 6: Final answer
    x = 197,574.91

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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.