Home / 210,508.53-290,498.38-115,013.18

Finding the Fourth Proportional to 210,508.53, 290,498.38 and 115,013.18

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Solution

The fourth proportional to 210,508.53, 290,498.38 and 115,013.18 is: 158,716.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,508.53 : 290,498.38 = 115,013.18 : x
  2. Step 2: Convert to fraction form
    210,508.53/290,498.38 = 115,013.18/x
  3. Step 3: Cross multiply
    210,508.53x = 290,498.38 × 115,013.18
  4. Step 4: Simplify right side
    210,508.53x = 33,411,142,468.65
  5. Step 5: Solve for x
    x = 33,411,142,468.65/210,508.53
  6. Step 6: Final answer
    x = 158,716.34

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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.