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Finding the Fourth Proportional to 287,349.98, 396,514.58 and 160,037.42

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Solution

The fourth proportional to 287,349.98, 396,514.58 and 160,037.42 is: 220,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,349.98 : 396,514.58 = 160,037.42 : x
  2. Step 2: Convert to fraction form
    287,349.98/396,514.58 = 160,037.42/x
  3. Step 3: Cross multiply
    287,349.98x = 396,514.58 × 160,037.42
  4. Step 4: Simplify right side
    287,349.98x = 63,457,170,375.58
  5. Step 5: Solve for x
    x = 63,457,170,375.58/287,349.98
  6. Step 6: Final answer
    x = 220,835.83

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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.