Home / 287,378.56-396,567.36-160,051.84

Finding the Fourth Proportional to 287,378.56, 396,567.36 and 160,051.84

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Solution

The fourth proportional to 287,378.56, 396,567.36 and 160,051.84 is: 220,863.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,378.56 : 396,567.36 = 160,051.84 : x
  2. Step 2: Convert to fraction form
    287,378.56/396,567.36 = 160,051.84/x
  3. Step 3: Cross multiply
    287,378.56x = 396,567.36 × 160,051.84
  4. Step 4: Simplify right side
    287,378.56x = 63,471,335,651.94
  5. Step 5: Solve for x
    x = 63,471,335,651.94/287,378.56
  6. Step 6: Final answer
    x = 220,863.16

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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.