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Finding the Fourth Proportional to 372.04, 554.84 and 317.53

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Solution

The fourth proportional to 372.04, 554.84 and 317.53 is: 473.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.04 : 554.84 = 317.53 : x
  2. Step 2: Convert to fraction form
    372.04/554.84 = 317.53/x
  3. Step 3: Cross multiply
    372.04x = 554.84 × 317.53
  4. Step 4: Simplify right side
    372.04x = 176,178.35
  5. Step 5: Solve for x
    x = 176,178.35/372.04
  6. Step 6: Final answer
    x = 473.55

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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.