Home / 381,122.23-525,945.09-209,036.69

Finding the Fourth Proportional to 381,122.23, 525,945.09 and 209,036.69

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Solution

The fourth proportional to 381,122.23, 525,945.09 and 209,036.69 is: 288,468.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,122.23 : 525,945.09 = 209,036.69 : x
  2. Step 2: Convert to fraction form
    381,122.23/525,945.09 = 209,036.69/x
  3. Step 3: Cross multiply
    381,122.23x = 525,945.09 × 209,036.69
  4. Step 4: Simplify right side
    381,122.23x = 109,941,818,105.63
  5. Step 5: Solve for x
    x = 109,941,818,105.63/381,122.23
  6. Step 6: Final answer
    x = 288,468.66

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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.