Home / 287,176.65-396,297.05-159,849.51

Finding the Fourth Proportional to 287,176.65, 396,297.05 and 159,849.51

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Solution

The fourth proportional to 287,176.65, 396,297.05 and 159,849.51 is: 220,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,176.65 : 396,297.05 = 159,849.51 : x
  2. Step 2: Convert to fraction form
    287,176.65/396,297.05 = 159,849.51/x
  3. Step 3: Cross multiply
    287,176.65x = 396,297.05 × 159,849.51
  4. Step 4: Simplify right side
    287,176.65x = 63,347,888,457.70
  5. Step 5: Solve for x
    x = 63,347,888,457.70/287,176.65
  6. Step 6: Final answer
    x = 220,588.58

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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.