Home / 287,387.07-396,590.22-160,063.58

Finding the Fourth Proportional to 287,387.07, 396,590.22 and 160,063.58

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Solution

The fourth proportional to 287,387.07, 396,590.22 and 160,063.58 is: 220,885.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,387.07 : 396,590.22 = 160,063.58 : x
  2. Step 2: Convert to fraction form
    287,387.07/396,590.22 = 160,063.58/x
  3. Step 3: Cross multiply
    287,387.07x = 396,590.22 × 160,063.58
  4. Step 4: Simplify right side
    287,387.07x = 63,479,648,423.24
  5. Step 5: Solve for x
    x = 63,479,648,423.24/287,387.07
  6. Step 6: Final answer
    x = 220,885.54

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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.