Home / 257,965.71-356,002.91-149,066.43

Finding the Fourth Proportional to 257,965.71, 356,002.91 and 149,066.43

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Solution

The fourth proportional to 257,965.71, 356,002.91 and 149,066.43 is: 205,717.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,965.71 : 356,002.91 = 149,066.43 : x
  2. Step 2: Convert to fraction form
    257,965.71/356,002.91 = 149,066.43/x
  3. Step 3: Cross multiply
    257,965.71x = 356,002.91 × 149,066.43
  4. Step 4: Simplify right side
    257,965.71x = 53,068,082,117.98
  5. Step 5: Solve for x
    x = 53,068,082,117.98/257,965.71
  6. Step 6: Final answer
    x = 205,717.58

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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.