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Finding the Fourth Proportional to 802.07, 1,202.84 and 294.85

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Solution

The fourth proportional to 802.07, 1,202.84 and 294.85 is: 442.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    802.07 : 1,202.84 = 294.85 : x
  2. Step 2: Convert to fraction form
    802.07/1,202.84 = 294.85/x
  3. Step 3: Cross multiply
    802.07x = 1,202.84 × 294.85
  4. Step 4: Simplify right side
    802.07x = 354,658.51
  5. Step 5: Solve for x
    x = 354,658.51/802.07
  6. Step 6: Final answer
    x = 442.18

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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.