Home / 218,301.58-301,255.71-122,808.35

Finding the Fourth Proportional to 218,301.58, 301,255.71 and 122,808.35

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Solution

The fourth proportional to 218,301.58, 301,255.71 and 122,808.35 is: 169,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,301.58 : 301,255.71 = 122,808.35 : x
  2. Step 2: Convert to fraction form
    218,301.58/301,255.71 = 122,808.35/x
  3. Step 3: Cross multiply
    218,301.58x = 301,255.71 × 122,808.35
  4. Step 4: Simplify right side
    218,301.58x = 36,996,716,965.79
  5. Step 5: Solve for x
    x = 36,996,716,965.79/218,301.58
  6. Step 6: Final answer
    x = 169,475.26

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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.