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Finding the Fourth Proportional to 470.03, 705.25 and 253.36

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Solution

The fourth proportional to 470.03, 705.25 and 253.36 is: 380.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.03 : 705.25 = 253.36 : x
  2. Step 2: Convert to fraction form
    470.03/705.25 = 253.36/x
  3. Step 3: Cross multiply
    470.03x = 705.25 × 253.36
  4. Step 4: Simplify right side
    470.03x = 178,679.74
  5. Step 5: Solve for x
    x = 178,679.74/470.03
  6. Step 6: Final answer
    x = 380.14

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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.