Home / 1,088.39-1,632.55-266.66

Finding the Fourth Proportional to 1,088.39, 1,632.55 and 266.66

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Solution

The fourth proportional to 1,088.39, 1,632.55 and 266.66 is: 399.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.39 : 1,632.55 = 266.66 : x
  2. Step 2: Convert to fraction form
    1,088.39/1,632.55 = 266.66/x
  3. Step 3: Cross multiply
    1,088.39x = 1,632.55 × 266.66
  4. Step 4: Simplify right side
    1,088.39x = 435,335.78
  5. Step 5: Solve for x
    x = 435,335.78/1,088.39
  6. Step 6: Final answer
    x = 399.98

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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.