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Finding the Fourth Proportional to 554.67, 765.52 and 358.76

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Solution

The fourth proportional to 554.67, 765.52 and 358.76 is: 495.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.67 : 765.52 = 358.76 : x
  2. Step 2: Convert to fraction form
    554.67/765.52 = 358.76/x
  3. Step 3: Cross multiply
    554.67x = 765.52 × 358.76
  4. Step 4: Simplify right side
    554.67x = 274,634.13
  5. Step 5: Solve for x
    x = 274,634.13/554.67
  6. Step 6: Final answer
    x = 495.13

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Double scale
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1.5x scale

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.