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Finding the Fourth Proportional to 554.84, 766.17 and 358.70

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Solution

The fourth proportional to 554.84, 766.17 and 358.70 is: 495.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.84 : 766.17 = 358.70 : x
  2. Step 2: Convert to fraction form
    554.84/766.17 = 358.70/x
  3. Step 3: Cross multiply
    554.84x = 766.17 × 358.70
  4. Step 4: Simplify right side
    554.84x = 274,821.35
  5. Step 5: Solve for x
    x = 274,821.35/554.84
  6. Step 6: Final answer
    x = 495.32

Related Problems

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Double scale
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Similar ratio
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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.