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Finding the Fourth Proportional to 555.08, 829.25 and 358.47

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Solution

The fourth proportional to 555.08, 829.25 and 358.47 is: 535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.08 : 829.25 = 358.47 : x
  2. Step 2: Convert to fraction form
    555.08/829.25 = 358.47/x
  3. Step 3: Cross multiply
    555.08x = 829.25 × 358.47
  4. Step 4: Simplify right side
    555.08x = 297,259.46
  5. Step 5: Solve for x
    x = 297,259.46/555.08
  6. Step 6: Final answer
    x = 535.53

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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.