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Finding the Fourth Proportional to 381,570.72, 572,368.26 and 191,927.52

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Solution

The fourth proportional to 381,570.72, 572,368.26 and 191,927.52 is: 287,897.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,570.72 : 572,368.26 = 191,927.52 : x
  2. Step 2: Convert to fraction form
    381,570.72/572,368.26 = 191,927.52/x
  3. Step 3: Cross multiply
    381,570.72x = 572,368.26 × 191,927.52
  4. Step 4: Simplify right side
    381,570.72x = 109,853,220,668.52
  5. Step 5: Solve for x
    x = 109,853,220,668.52/381,570.72
  6. Step 6: Final answer
    x = 287,897.41

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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.