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Finding the Fourth Proportional to 440.63, 660.94 and 152.06

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Solution

The fourth proportional to 440.63, 660.94 and 152.06 is: 228.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    440.63 : 660.94 = 152.06 : x
  2. Step 2: Convert to fraction form
    440.63/660.94 = 152.06/x
  3. Step 3: Cross multiply
    440.63x = 660.94 × 152.06
  4. Step 4: Simplify right side
    440.63x = 100,503.81
  5. Step 5: Solve for x
    x = 100,503.81/440.63
  6. Step 6: Final answer
    x = 228.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.