Home / 205,719.10-308,117.85-201,111.10

Finding the Fourth Proportional to 205,719.10, 308,117.85 and 201,111.10

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Solution

The fourth proportional to 205,719.10, 308,117.85 and 201,111.10 is: 301,216.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,719.10 : 308,117.85 = 201,111.10 : x
  2. Step 2: Convert to fraction form
    205,719.10/308,117.85 = 201,111.10/x
  3. Step 3: Cross multiply
    205,719.10x = 308,117.85 × 201,111.10
  4. Step 4: Simplify right side
    205,719.10x = 61,965,919,743.14
  5. Step 5: Solve for x
    x = 61,965,919,743.14/205,719.10
  6. Step 6: Final answer
    x = 301,216.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.