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Finding the Fourth Proportional to 287,595.73, 396,864.67 and 158,528.56

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Solution

The fourth proportional to 287,595.73, 396,864.67 and 158,528.56 is: 218,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,595.73 : 396,864.67 = 158,528.56 : x
  2. Step 2: Convert to fraction form
    287,595.73/396,864.67 = 158,528.56/x
  3. Step 3: Cross multiply
    287,595.73x = 396,864.67 × 158,528.56
  4. Step 4: Simplify right side
    287,595.73x = 62,914,384,649.98
  5. Step 5: Solve for x
    x = 62,914,384,649.98/287,595.73
  6. Step 6: Final answer
    x = 218,759.80

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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.