Home / 209,482.12-314,272.38-69,240.73

Finding the Fourth Proportional to 209,482.12, 314,272.38 and 69,240.73

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Solution

The fourth proportional to 209,482.12, 314,272.38 and 69,240.73 is: 103,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,482.12 : 314,272.38 = 69,240.73 : x
  2. Step 2: Convert to fraction form
    209,482.12/314,272.38 = 69,240.73/x
  3. Step 3: Cross multiply
    209,482.12x = 314,272.38 × 69,240.73
  4. Step 4: Simplify right side
    209,482.12x = 21,760,449,010.04
  5. Step 5: Solve for x
    x = 21,760,449,010.04/209,482.12
  6. Step 6: Final answer
    x = 103,877.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.