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Finding the Fourth Proportional to 612,078.78, 918,045.03 and 162,832.50

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Solution

The fourth proportional to 612,078.78, 918,045.03 and 162,832.50 is: 244,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,078.78 : 918,045.03 = 162,832.50 : x
  2. Step 2: Convert to fraction form
    612,078.78/918,045.03 = 162,832.50/x
  3. Step 3: Cross multiply
    612,078.78x = 918,045.03 × 162,832.50
  4. Step 4: Simplify right side
    612,078.78x = 149,487,567,347.48
  5. Step 5: Solve for x
    x = 149,487,567,347.48/612,078.78
  6. Step 6: Final answer
    x = 244,229.29

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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.