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Finding the Fourth Proportional to 352,159.42, 485,976.40 and 191,011

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Solution

The fourth proportional to 352,159.42, 485,976.40 and 191,011 is: 263,593.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,159.42 : 485,976.40 = 191,011 : x
  2. Step 2: Convert to fraction form
    352,159.42/485,976.40 = 191,011/x
  3. Step 3: Cross multiply
    352,159.42x = 485,976.40 × 191,011
  4. Step 4: Simplify right side
    352,159.42x = 92,826,838,140.40
  5. Step 5: Solve for x
    x = 92,826,838,140.40/352,159.42
  6. Step 6: Final answer
    x = 263,593.23

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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.