Home / 290,860.47-401,252.72-170,006.85

Finding the Fourth Proportional to 290,860.47, 401,252.72 and 170,006.85

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Solution

The fourth proportional to 290,860.47, 401,252.72 and 170,006.85 is: 234,530.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,860.47 : 401,252.72 = 170,006.85 : x
  2. Step 2: Convert to fraction form
    290,860.47/401,252.72 = 170,006.85/x
  3. Step 3: Cross multiply
    290,860.47x = 401,252.72 × 170,006.85
  4. Step 4: Simplify right side
    290,860.47x = 68,215,708,974.87
  5. Step 5: Solve for x
    x = 68,215,708,974.87/290,860.47
  6. Step 6: Final answer
    x = 234,530.70

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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.