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Finding the Fourth Proportional to 260,883.59, 390,537.60 and 235,935.38

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Solution

The fourth proportional to 260,883.59, 390,537.60 and 235,935.38 is: 353,190.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,883.59 : 390,537.60 = 235,935.38 : x
  2. Step 2: Convert to fraction form
    260,883.59/390,537.60 = 235,935.38/x
  3. Step 3: Cross multiply
    260,883.59x = 390,537.60 × 235,935.38
  4. Step 4: Simplify right side
    260,883.59x = 92,141,638,479.01
  5. Step 5: Solve for x
    x = 92,141,638,479.01/260,883.59
  6. Step 6: Final answer
    x = 353,190.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.