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Finding the Fourth Proportional to 612,301.86, 918,455.72 and 185,841.39

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Solution

The fourth proportional to 612,301.86, 918,455.72 and 185,841.39 is: 278,762.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,301.86 : 918,455.72 = 185,841.39 : x
  2. Step 2: Convert to fraction form
    612,301.86/918,455.72 = 185,841.39/x
  3. Step 3: Cross multiply
    612,301.86x = 918,455.72 × 185,841.39
  4. Step 4: Simplify right side
    612,301.86x = 170,687,084,910.95
  5. Step 5: Solve for x
    x = 170,687,084,910.95/612,301.86
  6. Step 6: Final answer
    x = 278,762.97

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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.