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Finding the Fourth Proportional to 235,340.46, 352,899.81 and 85,475.07

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Solution

The fourth proportional to 235,340.46, 352,899.81 and 85,475.07 is: 128,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,340.46 : 352,899.81 = 85,475.07 : x
  2. Step 2: Convert to fraction form
    235,340.46/352,899.81 = 85,475.07/x
  3. Step 3: Cross multiply
    235,340.46x = 352,899.81 × 85,475.07
  4. Step 4: Simplify right side
    235,340.46x = 30,164,135,962.74
  5. Step 5: Solve for x
    x = 30,164,135,962.74/235,340.46
  6. Step 6: Final answer
    x = 128,172.33

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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.