Home / 205,968.39-284,228.51-115,315.88

Finding the Fourth Proportional to 205,968.39, 284,228.51 and 115,315.88

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Solution

The fourth proportional to 205,968.39, 284,228.51 and 115,315.88 is: 159,131.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,968.39 : 284,228.51 = 115,315.88 : x
  2. Step 2: Convert to fraction form
    205,968.39/284,228.51 = 115,315.88/x
  3. Step 3: Cross multiply
    205,968.39x = 284,228.51 × 115,315.88
  4. Step 4: Simplify right side
    205,968.39x = 32,776,058,754.02
  5. Step 5: Solve for x
    x = 32,776,058,754.02/205,968.39
  6. Step 6: Final answer
    x = 159,131.50

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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.