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Finding the Fourth Proportional to 504.99, 696.91 and 283.93

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Solution

The fourth proportional to 504.99, 696.91 and 283.93 is: 391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.99 : 696.91 = 283.93 : x
  2. Step 2: Convert to fraction form
    504.99/696.91 = 283.93/x
  3. Step 3: Cross multiply
    504.99x = 696.91 × 283.93
  4. Step 4: Simplify right side
    504.99x = 197,873.66
  5. Step 5: Solve for x
    x = 197,873.66/504.99
  6. Step 6: Final answer
    x = 391.84

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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.