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Finding the Fourth Proportional to 287,499, 396,752.46 and 166,648.92

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Solution

The fourth proportional to 287,499, 396,752.46 and 166,648.92 is: 229,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,499 : 396,752.46 = 166,648.92 : x
  2. Step 2: Convert to fraction form
    287,499/396,752.46 = 166,648.92/x
  3. Step 3: Cross multiply
    287,499x = 396,752.46 × 166,648.92
  4. Step 4: Simplify right side
    287,499x = 66,118,368,966.34
  5. Step 5: Solve for x
    x = 66,118,368,966.34/287,499
  6. Step 6: Final answer
    x = 229,977.74

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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.