Home / 287,613.65-396,908.84-160,297.45

Finding the Fourth Proportional to 287,613.65, 396,908.84 and 160,297.45

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Solution

The fourth proportional to 287,613.65, 396,908.84 and 160,297.45 is: 221,211.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,613.65 : 396,908.84 = 160,297.45 : x
  2. Step 2: Convert to fraction form
    287,613.65/396,908.84 = 160,297.45/x
  3. Step 3: Cross multiply
    287,613.65x = 396,908.84 × 160,297.45
  4. Step 4: Simplify right side
    287,613.65x = 63,623,474,342.93
  5. Step 5: Solve for x
    x = 63,623,474,342.93/287,613.65
  6. Step 6: Final answer
    x = 221,211.59

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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.