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Finding the Fourth Proportional to 944.16, 1,303.02 and 551.17

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Solution

The fourth proportional to 944.16, 1,303.02 and 551.17 is: 760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.16 : 1,303.02 = 551.17 : x
  2. Step 2: Convert to fraction form
    944.16/1,303.02 = 551.17/x
  3. Step 3: Cross multiply
    944.16x = 1,303.02 × 551.17
  4. Step 4: Simplify right side
    944.16x = 718,187.16
  5. Step 5: Solve for x
    x = 718,187.16/944.16
  6. Step 6: Final answer
    x = 760.67

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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.