Home / 209,993.22-314,678.67-172,817.46

Finding the Fourth Proportional to 209,993.22, 314,678.67 and 172,817.46

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Solution

The fourth proportional to 209,993.22, 314,678.67 and 172,817.46 is: 258,970.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,993.22 : 314,678.67 = 172,817.46 : x
  2. Step 2: Convert to fraction form
    209,993.22/314,678.67 = 172,817.46/x
  3. Step 3: Cross multiply
    209,993.22x = 314,678.67 × 172,817.46
  4. Step 4: Simplify right side
    209,993.22x = 54,381,968,465.58
  5. Step 5: Solve for x
    x = 54,381,968,465.58/209,993.22
  6. Step 6: Final answer
    x = 258,970.12

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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.