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Finding the Fourth Proportional to 508.16, 701.19 and 321.77

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Solution

The fourth proportional to 508.16, 701.19 and 321.77 is: 444.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.16 : 701.19 = 321.77 : x
  2. Step 2: Convert to fraction form
    508.16/701.19 = 321.77/x
  3. Step 3: Cross multiply
    508.16x = 701.19 × 321.77
  4. Step 4: Simplify right side
    508.16x = 225,618.40
  5. Step 5: Solve for x
    x = 225,618.40/508.16
  6. Step 6: Final answer
    x = 444.00

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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.