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Finding the Fourth Proportional to 235,038.29, 352,697.51 and 85,290.26

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Solution

The fourth proportional to 235,038.29, 352,697.51 and 85,290.26 is: 127,986.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,038.29 : 352,697.51 = 85,290.26 : x
  2. Step 2: Convert to fraction form
    235,038.29/352,697.51 = 85,290.26/x
  3. Step 3: Cross multiply
    235,038.29x = 352,697.51 × 85,290.26
  4. Step 4: Simplify right side
    235,038.29x = 30,081,660,778.99
  5. Step 5: Solve for x
    x = 30,081,660,778.99/235,038.29
  6. Step 6: Final answer
    x = 127,986.22

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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.