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Finding the Fourth Proportional to 504.02, 695.48 and 279.94

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Solution

The fourth proportional to 504.02, 695.48 and 279.94 is: 386.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.02 : 695.48 = 279.94 : x
  2. Step 2: Convert to fraction form
    504.02/695.48 = 279.94/x
  3. Step 3: Cross multiply
    504.02x = 695.48 × 279.94
  4. Step 4: Simplify right side
    504.02x = 194,692.67
  5. Step 5: Solve for x
    x = 194,692.67/504.02
  6. Step 6: Final answer
    x = 386.28

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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.