Home / 381,126.82-525,951.43-209,041.26

Finding the Fourth Proportional to 381,126.82, 525,951.43 and 209,041.26

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Solution

The fourth proportional to 381,126.82, 525,951.43 and 209,041.26 is: 288,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,126.82 : 525,951.43 = 209,041.26 : x
  2. Step 2: Convert to fraction form
    381,126.82/525,951.43 = 209,041.26/x
  3. Step 3: Cross multiply
    381,126.82x = 525,951.43 × 209,041.26
  4. Step 4: Simplify right side
    381,126.82x = 109,945,547,131.08
  5. Step 5: Solve for x
    x = 109,945,547,131.08/381,126.82
  6. Step 6: Final answer
    x = 288,474.97

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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.