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Finding the Fourth Proportional to 202,679.81, 279,685.98 and 112,030.37

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Solution

The fourth proportional to 202,679.81, 279,685.98 and 112,030.37 is: 154,595.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,679.81 : 279,685.98 = 112,030.37 : x
  2. Step 2: Convert to fraction form
    202,679.81/279,685.98 = 112,030.37/x
  3. Step 3: Cross multiply
    202,679.81x = 279,685.98 × 112,030.37
  4. Step 4: Simplify right side
    202,679.81x = 31,333,322,214.36
  5. Step 5: Solve for x
    x = 31,333,322,214.36/202,679.81
  6. Step 6: Final answer
    x = 154,595.18

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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.