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Finding the Fourth Proportional to 653.26, 901.48 and 358.53

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Solution

The fourth proportional to 653.26, 901.48 and 358.53 is: 494.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.26 : 901.48 = 358.53 : x
  2. Step 2: Convert to fraction form
    653.26/901.48 = 358.53/x
  3. Step 3: Cross multiply
    653.26x = 901.48 × 358.53
  4. Step 4: Simplify right side
    653.26x = 323,207.62
  5. Step 5: Solve for x
    x = 323,207.62/653.26
  6. Step 6: Final answer
    x = 494.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.