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Finding the Fourth Proportional to 504.49, 695.95 and 357.20

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Solution

The fourth proportional to 504.49, 695.95 and 357.20 is: 492.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.49 : 695.95 = 357.20 : x
  2. Step 2: Convert to fraction form
    504.49/695.95 = 357.20/x
  3. Step 3: Cross multiply
    504.49x = 695.95 × 357.20
  4. Step 4: Simplify right side
    504.49x = 248,593.34
  5. Step 5: Solve for x
    x = 248,593.34/504.49
  6. Step 6: Final answer
    x = 492.76

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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.