Home / 258,022.26-387,057.08-100,263.02

Finding the Fourth Proportional to 258,022.26, 387,057.08 and 100,263.02

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Solution

The fourth proportional to 258,022.26, 387,057.08 and 100,263.02 is: 150,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,022.26 : 387,057.08 = 100,263.02 : x
  2. Step 2: Convert to fraction form
    258,022.26/387,057.08 = 100,263.02/x
  3. Step 3: Cross multiply
    258,022.26x = 387,057.08 × 100,263.02
  4. Step 4: Simplify right side
    258,022.26x = 38,807,510,068.55
  5. Step 5: Solve for x
    x = 38,807,510,068.55/258,022.26
  6. Step 6: Final answer
    x = 150,403.73

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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.