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Finding the Fourth Proportional to 218,117.00, 301,029.48 and 122,642.13

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Solution

The fourth proportional to 218,117.00, 301,029.48 and 122,642.13 is: 169,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,117.00 : 301,029.48 = 122,642.13 : x
  2. Step 2: Convert to fraction form
    218,117.00/301,029.48 = 122,642.13/x
  3. Step 3: Cross multiply
    218,117.00x = 301,029.48 × 122,642.13
  4. Step 4: Simplify right side
    218,117.00x = 36,918,897,748.85
  5. Step 5: Solve for x
    x = 36,918,897,748.85/218,117.00
  6. Step 6: Final answer
    x = 169,261.90

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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.