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Finding the Fourth Proportional to 558.17, 833.51 and 488.24

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Solution

The fourth proportional to 558.17, 833.51 and 488.24 is: 729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.17 : 833.51 = 488.24 : x
  2. Step 2: Convert to fraction form
    558.17/833.51 = 488.24/x
  3. Step 3: Cross multiply
    558.17x = 833.51 × 488.24
  4. Step 4: Simplify right side
    558.17x = 406,946.31
  5. Step 5: Solve for x
    x = 406,946.31/558.17
  6. Step 6: Final answer
    x = 729.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.