Home / 218,821.14-301,680.70-164,140.87

Finding the Fourth Proportional to 218,821.14, 301,680.70 and 164,140.87

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Solution

The fourth proportional to 218,821.14, 301,680.70 and 164,140.87 is: 226,295.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,821.14 : 301,680.70 = 164,140.87 : x
  2. Step 2: Convert to fraction form
    218,821.14/301,680.70 = 164,140.87/x
  3. Step 3: Cross multiply
    218,821.14x = 301,680.70 × 164,140.87
  4. Step 4: Simplify right side
    218,821.14x = 49,518,132,560.21
  5. Step 5: Solve for x
    x = 49,518,132,560.21/218,821.14
  6. Step 6: Final answer
    x = 226,295.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.