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Finding the Fourth Proportional to 560.80, 841.54 and 330.14

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Solution

The fourth proportional to 560.80, 841.54 and 330.14 is: 495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.80 : 841.54 = 330.14 : x
  2. Step 2: Convert to fraction form
    560.80/841.54 = 330.14/x
  3. Step 3: Cross multiply
    560.80x = 841.54 × 330.14
  4. Step 4: Simplify right side
    560.80x = 277,821.81
  5. Step 5: Solve for x
    x = 277,821.81/560.80
  6. Step 6: Final answer
    x = 495.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.