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Finding the Fourth Proportional to 584.90, 807.16 and 322.91

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Solution

The fourth proportional to 584.90, 807.16 and 322.91 is: 445.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.90 : 807.16 = 322.91 : x
  2. Step 2: Convert to fraction form
    584.90/807.16 = 322.91/x
  3. Step 3: Cross multiply
    584.90x = 807.16 × 322.91
  4. Step 4: Simplify right side
    584.90x = 260,640.19
  5. Step 5: Solve for x
    x = 260,640.19/584.90
  6. Step 6: Final answer
    x = 445.62

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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.