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Finding the Fourth Proportional to 909.66, 1,364.08 and 332.13

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Solution

The fourth proportional to 909.66, 1,364.08 and 332.13 is: 498.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    909.66 : 1,364.08 = 332.13 : x
  2. Step 2: Convert to fraction form
    909.66/1,364.08 = 332.13/x
  3. Step 3: Cross multiply
    909.66x = 1,364.08 × 332.13
  4. Step 4: Simplify right side
    909.66x = 453,044.24
  5. Step 5: Solve for x
    x = 453,044.24/909.66
  6. Step 6: Final answer
    x = 498.04

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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.