Home / 219,997.20-329,995.80-130,184.40

Finding the Fourth Proportional to 219,997.20, 329,995.80 and 130,184.40

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Solution

The fourth proportional to 219,997.20, 329,995.80 and 130,184.40 is: 195,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,997.20 : 329,995.80 = 130,184.40 : x
  2. Step 2: Convert to fraction form
    219,997.20/329,995.80 = 130,184.40/x
  3. Step 3: Cross multiply
    219,997.20x = 329,995.80 × 130,184.40
  4. Step 4: Simplify right side
    219,997.20x = 42,960,305,225.52
  5. Step 5: Solve for x
    x = 42,960,305,225.52/219,997.20
  6. Step 6: Final answer
    x = 195,276.60

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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.