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Finding the Fourth Proportional to 660,816.94, 991,222.16 and 187,503.16

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Solution

The fourth proportional to 660,816.94, 991,222.16 and 187,503.16 is: 281,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,816.94 : 991,222.16 = 187,503.16 : x
  2. Step 2: Convert to fraction form
    660,816.94/991,222.16 = 187,503.16/x
  3. Step 3: Cross multiply
    660,816.94x = 991,222.16 × 187,503.16
  4. Step 4: Simplify right side
    660,816.94x = 185,857,285,252.73
  5. Step 5: Solve for x
    x = 185,857,285,252.73/660,816.94
  6. Step 6: Final answer
    x = 281,253.82

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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.