Home / 218,176.21-301,072.17-122,677.21

Finding the Fourth Proportional to 218,176.21, 301,072.17 and 122,677.21

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Solution

The fourth proportional to 218,176.21, 301,072.17 and 122,677.21 is: 169,288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,176.21 : 301,072.17 = 122,677.21 : x
  2. Step 2: Convert to fraction form
    218,176.21/301,072.17 = 122,677.21/x
  3. Step 3: Cross multiply
    218,176.21x = 301,072.17 × 122,677.21
  4. Step 4: Simplify right side
    218,176.21x = 36,934,693,824.25
  5. Step 5: Solve for x
    x = 36,934,693,824.25/218,176.21
  6. Step 6: Final answer
    x = 169,288.36

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1.5x scale

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.