Home / 216,567.92-324,633.81-90,278.09

Finding the Fourth Proportional to 216,567.92, 324,633.81 and 90,278.09

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Solution

The fourth proportional to 216,567.92, 324,633.81 and 90,278.09 is: 135,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,567.92 : 324,633.81 = 90,278.09 : x
  2. Step 2: Convert to fraction form
    216,567.92/324,633.81 = 90,278.09/x
  3. Step 3: Cross multiply
    216,567.92x = 324,633.81 × 90,278.09
  4. Step 4: Simplify right side
    216,567.92x = 29,307,320,316.22
  5. Step 5: Solve for x
    x = 29,307,320,316.22/216,567.92
  6. Step 6: Final answer
    x = 135,326.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.