Home / 218,681.19-301,778.73-123,218.64

Finding the Fourth Proportional to 218,681.19, 301,778.73 and 123,218.64

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Solution

The fourth proportional to 218,681.19, 301,778.73 and 123,218.64 is: 170,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,681.19 : 301,778.73 = 123,218.64 : x
  2. Step 2: Convert to fraction form
    218,681.19/301,778.73 = 123,218.64/x
  3. Step 3: Cross multiply
    218,681.19x = 301,778.73 × 123,218.64
  4. Step 4: Simplify right side
    218,681.19x = 37,184,764,691.53
  5. Step 5: Solve for x
    x = 37,184,764,691.53/218,681.19
  6. Step 6: Final answer
    x = 170,040.98

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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.