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Finding the Fourth Proportional to 503.69, 695.05 and 293.83

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Solution

The fourth proportional to 503.69, 695.05 and 293.83 is: 405.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.69 : 695.05 = 293.83 : x
  2. Step 2: Convert to fraction form
    503.69/695.05 = 293.83/x
  3. Step 3: Cross multiply
    503.69x = 695.05 × 293.83
  4. Step 4: Simplify right side
    503.69x = 204,224.07
  5. Step 5: Solve for x
    x = 204,224.07/503.69
  6. Step 6: Final answer
    x = 405.46

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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.