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Finding the Fourth Proportional to 612,663.66, 919,039.43 and 163,382.18

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Solution

The fourth proportional to 612,663.66, 919,039.43 and 163,382.18 is: 245,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,663.66 : 919,039.43 = 163,382.18 : x
  2. Step 2: Convert to fraction form
    612,663.66/919,039.43 = 163,382.18/x
  3. Step 3: Cross multiply
    612,663.66x = 919,039.43 × 163,382.18
  4. Step 4: Simplify right side
    612,663.66x = 150,154,661,392.62
  5. Step 5: Solve for x
    x = 150,154,661,392.62/612,663.66
  6. Step 6: Final answer
    x = 245,084.98

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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.