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Finding the Fourth Proportional to 235,243.05, 352,878.10 and 66,750.20

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Solution

The fourth proportional to 235,243.05, 352,878.10 and 66,750.20 is: 100,129.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,243.05 : 352,878.10 = 66,750.20 : x
  2. Step 2: Convert to fraction form
    235,243.05/352,878.10 = 66,750.20/x
  3. Step 3: Cross multiply
    235,243.05x = 352,878.10 × 66,750.20
  4. Step 4: Simplify right side
    235,243.05x = 23,554,681,986.23
  5. Step 5: Solve for x
    x = 23,554,681,986.23/235,243.05
  6. Step 6: Final answer
    x = 100,129.13

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1.5x scale

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.