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Finding the Fourth Proportional to 317.04, 437.61 and 186.06

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Solution

The fourth proportional to 317.04, 437.61 and 186.06 is: 256.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.04 : 437.61 = 186.06 : x
  2. Step 2: Convert to fraction form
    317.04/437.61 = 186.06/x
  3. Step 3: Cross multiply
    317.04x = 437.61 × 186.06
  4. Step 4: Simplify right side
    317.04x = 81,421.72
  5. Step 5: Solve for x
    x = 81,421.72/317.04
  6. Step 6: Final answer
    x = 256.82

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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.