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Finding the Fourth Proportional to 445.44, 614.81 and 270.75

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Solution

The fourth proportional to 445.44, 614.81 and 270.75 is: 373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.44 : 614.81 = 270.75 : x
  2. Step 2: Convert to fraction form
    445.44/614.81 = 270.75/x
  3. Step 3: Cross multiply
    445.44x = 614.81 × 270.75
  4. Step 4: Simplify right side
    445.44x = 166,460.48
  5. Step 5: Solve for x
    x = 166,460.48/445.44
  6. Step 6: Final answer
    x = 373.70

Related Problems

Find fourth proportional to 222.72, 307.41 and 135.38
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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.