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Finding the Fourth Proportional to 287,159.76, 396,280.50 and 159,832.62

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Solution

The fourth proportional to 287,159.76, 396,280.50 and 159,832.62 is: 220,569.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,159.76 : 396,280.50 = 159,832.62 : x
  2. Step 2: Convert to fraction form
    287,159.76/396,280.50 = 159,832.62/x
  3. Step 3: Cross multiply
    287,159.76x = 396,280.50 × 159,832.62
  4. Step 4: Simplify right side
    287,159.76x = 63,338,550,569.91
  5. Step 5: Solve for x
    x = 63,338,550,569.91/287,159.76
  6. Step 6: Final answer
    x = 220,569.03

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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.