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Finding the Fourth Proportional to 612,262.29, 918,395.42 and 185,801.75

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Solution

The fourth proportional to 612,262.29, 918,395.42 and 185,801.75 is: 278,703.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,262.29 : 918,395.42 = 185,801.75 : x
  2. Step 2: Convert to fraction form
    612,262.29/918,395.42 = 185,801.75/x
  3. Step 3: Cross multiply
    612,262.29x = 918,395.42 × 185,801.75
  4. Step 4: Simplify right side
    612,262.29x = 170,639,474,150.98
  5. Step 5: Solve for x
    x = 170,639,474,150.98/612,262.29
  6. Step 6: Final answer
    x = 278,703.22

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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.