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Finding the Fourth Proportional to 440.37, 607.97 and 291.01

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Solution

The fourth proportional to 440.37, 607.97 and 291.01 is: 401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.37 : 607.97 = 291.01 : x
  2. Step 2: Convert to fraction form
    440.37/607.97 = 291.01/x
  3. Step 3: Cross multiply
    440.37x = 607.97 × 291.01
  4. Step 4: Simplify right side
    440.37x = 176,925.35
  5. Step 5: Solve for x
    x = 176,925.35/440.37
  6. Step 6: Final answer
    x = 401.77

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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.