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Finding the Fourth Proportional to 440.76, 607.65 and 361.77

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Solution

The fourth proportional to 440.76, 607.65 and 361.77 is: 498.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.76 : 607.65 = 361.77 : x
  2. Step 2: Convert to fraction form
    440.76/607.65 = 361.77/x
  3. Step 3: Cross multiply
    440.76x = 607.65 × 361.77
  4. Step 4: Simplify right side
    440.76x = 219,829.54
  5. Step 5: Solve for x
    x = 219,829.54/440.76
  6. Step 6: Final answer
    x = 498.75

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Find fourth proportional to 220.38, 303.83 and 180.89
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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.