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Finding the Fourth Proportional to 632.76, 873.21 and 353.00

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Solution

The fourth proportional to 632.76, 873.21 and 353.00 is: 487.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.76 : 873.21 = 353.00 : x
  2. Step 2: Convert to fraction form
    632.76/873.21 = 353.00/x
  3. Step 3: Cross multiply
    632.76x = 873.21 × 353.00
  4. Step 4: Simplify right side
    632.76x = 308,238.76
  5. Step 5: Solve for x
    x = 308,238.76/632.76
  6. Step 6: Final answer
    x = 487.13

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Find fourth proportional to 316.38, 436.61 and 176.50
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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.