Home / 209,361.18-314,042.67-67,228.05

Finding the Fourth Proportional to 209,361.18, 314,042.67 and 67,228.05

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Solution

The fourth proportional to 209,361.18, 314,042.67 and 67,228.05 is: 100,842.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,361.18 : 314,042.67 = 67,228.05 : x
  2. Step 2: Convert to fraction form
    209,361.18/314,042.67 = 67,228.05/x
  3. Step 3: Cross multiply
    209,361.18x = 314,042.67 × 67,228.05
  4. Step 4: Simplify right side
    209,361.18x = 21,112,476,320.89
  5. Step 5: Solve for x
    x = 21,112,476,320.89/209,361.18
  6. Step 6: Final answer
    x = 100,842.36

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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.