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Finding the Fourth Proportional to 330,406.29, 495,366.98 and 105,637.37

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Solution

The fourth proportional to 330,406.29, 495,366.98 and 105,637.37 is: 158,378.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,406.29 : 495,366.98 = 105,637.37 : x
  2. Step 2: Convert to fraction form
    330,406.29/495,366.98 = 105,637.37/x
  3. Step 3: Cross multiply
    330,406.29x = 495,366.98 × 105,637.37
  4. Step 4: Simplify right side
    330,406.29x = 52,329,261,947.02
  5. Step 5: Solve for x
    x = 52,329,261,947.02/330,406.29
  6. Step 6: Final answer
    x = 158,378.53

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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.