Home / 1,088.19-1,632.28-308.21

Finding the Fourth Proportional to 1,088.19, 1,632.28 and 308.21

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Solution

The fourth proportional to 1,088.19, 1,632.28 and 308.21 is: 462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.19 : 1,632.28 = 308.21 : x
  2. Step 2: Convert to fraction form
    1,088.19/1,632.28 = 308.21/x
  3. Step 3: Cross multiply
    1,088.19x = 1,632.28 × 308.21
  4. Step 4: Simplify right side
    1,088.19x = 503,085.02
  5. Step 5: Solve for x
    x = 503,085.02/1,088.19
  6. Step 6: Final answer
    x = 462.31

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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.