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Finding the Fourth Proportional to 612,052.23, 918,005.31 and 162,805.98

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Solution

The fourth proportional to 612,052.23, 918,005.31 and 162,805.98 is: 244,189.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,052.23 : 918,005.31 = 162,805.98 : x
  2. Step 2: Convert to fraction form
    612,052.23/918,005.31 = 162,805.98/x
  3. Step 3: Cross multiply
    612,052.23x = 918,005.31 × 162,805.98
  4. Step 4: Simplify right side
    612,052.23x = 149,456,754,139.75
  5. Step 5: Solve for x
    x = 149,456,754,139.75/612,052.23
  6. Step 6: Final answer
    x = 244,189.54

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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.