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Finding the Fourth Proportional to 317.59, 474.61 and 300.04

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Solution

The fourth proportional to 317.59, 474.61 and 300.04 is: 448.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.59 : 474.61 = 300.04 : x
  2. Step 2: Convert to fraction form
    317.59/474.61 = 300.04/x
  3. Step 3: Cross multiply
    317.59x = 474.61 × 300.04
  4. Step 4: Simplify right side
    317.59x = 142,400.48
  5. Step 5: Solve for x
    x = 142,400.48/317.59
  6. Step 6: Final answer
    x = 448.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.