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Finding the Fourth Proportional to 508.87, 761.71 and 335.13

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Solution

The fourth proportional to 508.87, 761.71 and 335.13 is: 501.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.87 : 761.71 = 335.13 : x
  2. Step 2: Convert to fraction form
    508.87/761.71 = 335.13/x
  3. Step 3: Cross multiply
    508.87x = 761.71 × 335.13
  4. Step 4: Simplify right side
    508.87x = 255,271.87
  5. Step 5: Solve for x
    x = 255,271.87/508.87
  6. Step 6: Final answer
    x = 501.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.