Home / 287,263.25-396,426.02-159,941.58

Finding the Fourth Proportional to 287,263.25, 396,426.02 and 159,941.58

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Solution

The fourth proportional to 287,263.25, 396,426.02 and 159,941.58 is: 220,720.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,263.25 : 396,426.02 = 159,941.58 : x
  2. Step 2: Convert to fraction form
    287,263.25/396,426.02 = 159,941.58/x
  3. Step 3: Cross multiply
    287,263.25x = 396,426.02 × 159,941.58
  4. Step 4: Simplify right side
    287,263.25x = 63,405,003,991.91
  5. Step 5: Solve for x
    x = 63,405,003,991.91/287,263.25
  6. Step 6: Final answer
    x = 220,720.90

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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.