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Finding the Fourth Proportional to 972.69, 1,459.01 and 242.27

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Solution

The fourth proportional to 972.69, 1,459.01 and 242.27 is: 363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    972.69 : 1,459.01 = 242.27 : x
  2. Step 2: Convert to fraction form
    972.69/1,459.01 = 242.27/x
  3. Step 3: Cross multiply
    972.69x = 1,459.01 × 242.27
  4. Step 4: Simplify right side
    972.69x = 353,471.31
  5. Step 5: Solve for x
    x = 353,471.31/972.69
  6. Step 6: Final answer
    x = 363.40

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Double scale
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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.