Home / 209,808.41-314,339.49-120,878.19

Finding the Fourth Proportional to 209,808.41, 314,339.49 and 120,878.19

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Solution

The fourth proportional to 209,808.41, 314,339.49 and 120,878.19 is: 181,102.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,808.41 : 314,339.49 = 120,878.19 : x
  2. Step 2: Convert to fraction form
    209,808.41/314,339.49 = 120,878.19/x
  3. Step 3: Cross multiply
    209,808.41x = 314,339.49 × 120,878.19
  4. Step 4: Simplify right side
    209,808.41x = 37,996,788,596.72
  5. Step 5: Solve for x
    x = 37,996,788,596.72/209,808.41
  6. Step 6: Final answer
    x = 181,102.32

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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.