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Finding the Fourth Proportional to 259.06, 390.61 and 237.53

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Solution

The fourth proportional to 259.06, 390.61 and 237.53 is: 358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    259.06 : 390.61 = 237.53 : x
  2. Step 2: Convert to fraction form
    259.06/390.61 = 237.53/x
  3. Step 3: Cross multiply
    259.06x = 390.61 × 237.53
  4. Step 4: Simplify right side
    259.06x = 92,779.64
  5. Step 5: Solve for x
    x = 92,779.64/259.06
  6. Step 6: Final answer
    x = 358.15

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.