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Finding the Fourth Proportional to 581.16, 802.38 and 360.44

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Solution

The fourth proportional to 581.16, 802.38 and 360.44 is: 497.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.16 : 802.38 = 360.44 : x
  2. Step 2: Convert to fraction form
    581.16/802.38 = 360.44/x
  3. Step 3: Cross multiply
    581.16x = 802.38 × 360.44
  4. Step 4: Simplify right side
    581.16x = 289,205.84
  5. Step 5: Solve for x
    x = 289,205.84/581.16
  6. Step 6: Final answer
    x = 497.64

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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.