Home / 287,633.28-396,951.12-160,308.58

Finding the Fourth Proportional to 287,633.28, 396,951.12 and 160,308.58

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Solution

The fourth proportional to 287,633.28, 396,951.12 and 160,308.58 is: 221,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,633.28 : 396,951.12 = 160,308.58 : x
  2. Step 2: Convert to fraction form
    287,633.28/396,951.12 = 160,308.58/x
  3. Step 3: Cross multiply
    287,633.28x = 396,951.12 × 160,308.58
  4. Step 4: Simplify right side
    287,633.28x = 63,634,670,376.61
  5. Step 5: Solve for x
    x = 63,634,670,376.61/287,633.28
  6. Step 6: Final answer
    x = 221,235.42

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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.