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Finding the Fourth Proportional to 330,022.50, 495,242 and 140,482.58

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Solution

The fourth proportional to 330,022.50, 495,242 and 140,482.58 is: 210,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,022.50 : 495,242 = 140,482.58 : x
  2. Step 2: Convert to fraction form
    330,022.50/495,242 = 140,482.58/x
  3. Step 3: Cross multiply
    330,022.50x = 495,242 × 140,482.58
  4. Step 4: Simplify right side
    330,022.50x = 69,572,873,884.36
  5. Step 5: Solve for x
    x = 69,572,873,884.36/330,022.50
  6. Step 6: Final answer
    x = 210,812.52

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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.