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Finding the Fourth Proportional to 581.53, 802.88 and 360.61

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Solution

The fourth proportional to 581.53, 802.88 and 360.61 is: 497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.53 : 802.88 = 360.61 : x
  2. Step 2: Convert to fraction form
    581.53/802.88 = 360.61/x
  3. Step 3: Cross multiply
    581.53x = 802.88 × 360.61
  4. Step 4: Simplify right side
    581.53x = 289,526.56
  5. Step 5: Solve for x
    x = 289,526.56/581.53
  6. Step 6: Final answer
    x = 497.87

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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.