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Finding the Fourth Proportional to 586.25, 808.99 and 324.25

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Solution

The fourth proportional to 586.25, 808.99 and 324.25 is: 447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.25 : 808.99 = 324.25 : x
  2. Step 2: Convert to fraction form
    586.25/808.99 = 324.25/x
  3. Step 3: Cross multiply
    586.25x = 808.99 × 324.25
  4. Step 4: Simplify right side
    586.25x = 262,315.01
  5. Step 5: Solve for x
    x = 262,315.01/586.25
  6. Step 6: Final answer
    x = 447.45

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Similar ratio
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1.5x scale

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.