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Finding the Fourth Proportional to 440.66, 607.53 and 283.01

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Solution

The fourth proportional to 440.66, 607.53 and 283.01 is: 390.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.66 : 607.53 = 283.01 : x
  2. Step 2: Convert to fraction form
    440.66/607.53 = 283.01/x
  3. Step 3: Cross multiply
    440.66x = 607.53 × 283.01
  4. Step 4: Simplify right side
    440.66x = 171,934.03
  5. Step 5: Solve for x
    x = 171,934.03/440.66
  6. Step 6: Final answer
    x = 390.18

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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.