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Finding the Fourth Proportional to 511.12, 700.68 and 503.52

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Solution

The fourth proportional to 511.12, 700.68 and 503.52 is: 690.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.12 : 700.68 = 503.52 : x
  2. Step 2: Convert to fraction form
    511.12/700.68 = 503.52/x
  3. Step 3: Cross multiply
    511.12x = 700.68 × 503.52
  4. Step 4: Simplify right side
    511.12x = 352,806.39
  5. Step 5: Solve for x
    x = 352,806.39/511.12
  6. Step 6: Final answer
    x = 690.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.