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Finding the Fourth Proportional to 219,886.40, 303,437.64 and 123,091.40

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Solution

The fourth proportional to 219,886.40, 303,437.64 and 123,091.40 is: 169,863.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,886.40 : 303,437.64 = 123,091.40 : x
  2. Step 2: Convert to fraction form
    219,886.40/303,437.64 = 123,091.40/x
  3. Step 3: Cross multiply
    219,886.40x = 303,437.64 × 123,091.40
  4. Step 4: Simplify right side
    219,886.40x = 37,350,563,920.30
  5. Step 5: Solve for x
    x = 37,350,563,920.30/219,886.40
  6. Step 6: Final answer
    x = 169,863.00

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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.