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Finding the Fourth Proportional to 290,322.23, 435,371.01 and 112,805.87

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Solution

The fourth proportional to 290,322.23, 435,371.01 and 112,805.87 is: 169,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,322.23 : 435,371.01 = 112,805.87 : x
  2. Step 2: Convert to fraction form
    290,322.23/435,371.01 = 112,805.87/x
  3. Step 3: Cross multiply
    290,322.23x = 435,371.01 × 112,805.87
  4. Step 4: Simplify right side
    290,322.23x = 49,112,405,555.83
  5. Step 5: Solve for x
    x = 49,112,405,555.83/290,322.23
  6. Step 6: Final answer
    x = 169,165.16

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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.