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Finding the Fourth Proportional to 440.73, 607.98 and 283.32

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Solution

The fourth proportional to 440.73, 607.98 and 283.32 is: 390.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.73 : 607.98 = 283.32 : x
  2. Step 2: Convert to fraction form
    440.73/607.98 = 283.32/x
  3. Step 3: Cross multiply
    440.73x = 607.98 × 283.32
  4. Step 4: Simplify right side
    440.73x = 172,252.89
  5. Step 5: Solve for x
    x = 172,252.89/440.73
  6. Step 6: Final answer
    x = 390.84

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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.