Home / 330,185.83-495,076.35-140,538.20

Finding the Fourth Proportional to 330,185.83, 495,076.35 and 140,538.20

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Solution

The fourth proportional to 330,185.83, 495,076.35 and 140,538.20 is: 210,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,185.83 : 495,076.35 = 140,538.20 : x
  2. Step 2: Convert to fraction form
    330,185.83/495,076.35 = 140,538.20/x
  3. Step 3: Cross multiply
    330,185.83x = 495,076.35 × 140,538.20
  4. Step 4: Simplify right side
    330,185.83x = 69,577,136,616.19
  5. Step 5: Solve for x
    x = 69,577,136,616.19/330,185.83
  6. Step 6: Final answer
    x = 210,721.15

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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.