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Finding the Fourth Proportional to 535.48, 739.40 and 508.32

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Solution

The fourth proportional to 535.48, 739.40 and 508.32 is: 701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.48 : 739.40 = 508.32 : x
  2. Step 2: Convert to fraction form
    535.48/739.40 = 508.32/x
  3. Step 3: Cross multiply
    535.48x = 739.40 × 508.32
  4. Step 4: Simplify right side
    535.48x = 375,851.81
  5. Step 5: Solve for x
    x = 375,851.81/535.48
  6. Step 6: Final answer
    x = 701.90

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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.