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Finding the Fourth Proportional to 202,460.40, 279,391.08 and 111,811.08

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Solution

The fourth proportional to 202,460.40, 279,391.08 and 111,811.08 is: 154,296.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,460.40 : 279,391.08 = 111,811.08 : x
  2. Step 2: Convert to fraction form
    202,460.40/279,391.08 = 111,811.08/x
  3. Step 3: Cross multiply
    202,460.40x = 279,391.08 × 111,811.08
  4. Step 4: Simplify right side
    202,460.40x = 31,239,018,397.17
  5. Step 5: Solve for x
    x = 31,239,018,397.17/202,460.40
  6. Step 6: Final answer
    x = 154,296.93

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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.