Home / 218,684.00-301,782.61-123,221.45

Finding the Fourth Proportional to 218,684.00, 301,782.61 and 123,221.45

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Solution

The fourth proportional to 218,684.00, 301,782.61 and 123,221.45 is: 170,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,684.00 : 301,782.61 = 123,221.45 : x
  2. Step 2: Convert to fraction form
    218,684.00/301,782.61 = 123,221.45/x
  3. Step 3: Cross multiply
    218,684.00x = 301,782.61 × 123,221.45
  4. Step 4: Simplify right side
    218,684.00x = 37,186,091,697.47
  5. Step 5: Solve for x
    x = 37,186,091,697.47/218,684.00
  6. Step 6: Final answer
    x = 170,044.87

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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.