Home / 209,982.70-314,974.05-76,818.70

Finding the Fourth Proportional to 209,982.70, 314,974.05 and 76,818.70

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Solution

The fourth proportional to 209,982.70, 314,974.05 and 76,818.70 is: 115,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,982.70 : 314,974.05 = 76,818.70 : x
  2. Step 2: Convert to fraction form
    209,982.70/314,974.05 = 76,818.70/x
  3. Step 3: Cross multiply
    209,982.70x = 314,974.05 × 76,818.70
  4. Step 4: Simplify right side
    209,982.70x = 24,195,897,054.74
  5. Step 5: Solve for x
    x = 24,195,897,054.74/209,982.70
  6. Step 6: Final answer
    x = 115,228.05

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1.5x scale

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.