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Finding the Fourth Proportional to 802.13, 1,203.13 and 225.01

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Solution

The fourth proportional to 802.13, 1,203.13 and 225.01 is: 337.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.13 : 1,203.13 = 225.01 : x
  2. Step 2: Convert to fraction form
    802.13/1,203.13 = 225.01/x
  3. Step 3: Cross multiply
    802.13x = 1,203.13 × 225.01
  4. Step 4: Simplify right side
    802.13x = 270,709.14
  5. Step 5: Solve for x
    x = 270,709.14/802.13
  6. Step 6: Final answer
    x = 337.49

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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.