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Finding the Fourth Proportional to 440.04, 607.20 and 274.22

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Solution

The fourth proportional to 440.04, 607.20 and 274.22 is: 378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.04 : 607.20 = 274.22 : x
  2. Step 2: Convert to fraction form
    440.04/607.20 = 274.22/x
  3. Step 3: Cross multiply
    440.04x = 607.20 × 274.22
  4. Step 4: Simplify right side
    440.04x = 166,503.35
  5. Step 5: Solve for x
    x = 166,503.35/440.04
  6. Step 6: Final answer
    x = 378.38

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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.