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Finding the Fourth Proportional to 653.25, 901.49 and 404.58

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Solution

The fourth proportional to 653.25, 901.49 and 404.58 is: 558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    653.25 : 901.49 = 404.58 : x
  2. Step 2: Convert to fraction form
    653.25/901.49 = 404.58/x
  3. Step 3: Cross multiply
    653.25x = 901.49 × 404.58
  4. Step 4: Simplify right side
    653.25x = 364,724.82
  5. Step 5: Solve for x
    x = 364,724.82/653.25
  6. Step 6: Final answer
    x = 558.32

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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.