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Finding the Fourth Proportional to 612,029.76, 918,174.24 and 191,337.36

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Solution

The fourth proportional to 612,029.76, 918,174.24 and 191,337.36 is: 287,046.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,029.76 : 918,174.24 = 191,337.36 : x
  2. Step 2: Convert to fraction form
    612,029.76/918,174.24 = 191,337.36/x
  3. Step 3: Cross multiply
    612,029.76x = 918,174.24 × 191,337.36
  4. Step 4: Simplify right side
    612,029.76x = 175,681,035,101.61
  5. Step 5: Solve for x
    x = 175,681,035,101.61/612,029.76
  6. Step 6: Final answer
    x = 287,046.56

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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.