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Finding the Fourth Proportional to 285,416.72, 393,901.73 and 158,092.41

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Solution

The fourth proportional to 285,416.72, 393,901.73 and 158,092.41 is: 218,182.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,416.72 : 393,901.73 = 158,092.41 : x
  2. Step 2: Convert to fraction form
    285,416.72/393,901.73 = 158,092.41/x
  3. Step 3: Cross multiply
    285,416.72x = 393,901.73 × 158,092.41
  4. Step 4: Simplify right side
    285,416.72x = 62,272,873,008.41
  5. Step 5: Solve for x
    x = 62,272,873,008.41/285,416.72
  6. Step 6: Final answer
    x = 218,182.29

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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.