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Finding the Fourth Proportional to 582.14, 803.35 and 320.14

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Solution

The fourth proportional to 582.14, 803.35 and 320.14 is: 441.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    582.14 : 803.35 = 320.14 : x
  2. Step 2: Convert to fraction form
    582.14/803.35 = 320.14/x
  3. Step 3: Cross multiply
    582.14x = 803.35 × 320.14
  4. Step 4: Simplify right side
    582.14x = 257,184.47
  5. Step 5: Solve for x
    x = 257,184.47/582.14
  6. Step 6: Final answer
    x = 441.79

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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.