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Finding the Fourth Proportional to 330,028.69, 495,110.01 and 105,382.78

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Solution

The fourth proportional to 330,028.69, 495,110.01 and 105,382.78 is: 158,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,028.69 : 495,110.01 = 105,382.78 : x
  2. Step 2: Convert to fraction form
    330,028.69/495,110.01 = 105,382.78/x
  3. Step 3: Cross multiply
    330,028.69x = 495,110.01 × 105,382.78
  4. Step 4: Simplify right side
    330,028.69x = 52,176,069,259.63
  5. Step 5: Solve for x
    x = 52,176,069,259.63/330,028.69
  6. Step 6: Final answer
    x = 158,095.56

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1.5x scale

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.