Home / 199,238.40-274,944-109,812.48

Finding the Fourth Proportional to 199,238.40, 274,944 and 109,812.48

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Solution

The fourth proportional to 199,238.40, 274,944 and 109,812.48 is: 151,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,238.40 : 274,944 = 109,812.48 : x
  2. Step 2: Convert to fraction form
    199,238.40/274,944 = 109,812.48/x
  3. Step 3: Cross multiply
    199,238.40x = 274,944 × 109,812.48
  4. Step 4: Simplify right side
    199,238.40x = 30,192,282,501.12
  5. Step 5: Solve for x
    x = 30,192,282,501.12/199,238.40
  6. Step 6: Final answer
    x = 151,538.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.