Home / 210,521.67-290,521.94-115,028.36

Finding the Fourth Proportional to 210,521.67, 290,521.94 and 115,028.36

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Solution

The fourth proportional to 210,521.67, 290,521.94 and 115,028.36 is: 158,740.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,521.67 : 290,521.94 = 115,028.36 : x
  2. Step 2: Convert to fraction form
    210,521.67/290,521.94 = 115,028.36/x
  3. Step 3: Cross multiply
    210,521.67x = 290,521.94 × 115,028.36
  4. Step 4: Simplify right side
    210,521.67x = 33,418,260,274.47
  5. Step 5: Solve for x
    x = 33,418,260,274.47/210,521.67
  6. Step 6: Final answer
    x = 158,740.24

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1.5x scale

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.