Home / 1,088.17-1,632.26-318.67

Finding the Fourth Proportional to 1,088.17, 1,632.26 and 318.67

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Solution

The fourth proportional to 1,088.17, 1,632.26 and 318.67 is: 478.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,088.17 : 1,632.26 = 318.67 : x
  2. Step 2: Convert to fraction form
    1,088.17/1,632.26 = 318.67/x
  3. Step 3: Cross multiply
    1,088.17x = 1,632.26 × 318.67
  4. Step 4: Simplify right side
    1,088.17x = 520,152.29
  5. Step 5: Solve for x
    x = 520,152.29/1,088.17
  6. Step 6: Final answer
    x = 478.01

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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.