Home / 193,820.20-290,730.30-140,943.40

Finding the Fourth Proportional to 193,820.20, 290,730.30 and 140,943.40

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Solution

The fourth proportional to 193,820.20, 290,730.30 and 140,943.40 is: 211,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,820.20 : 290,730.30 = 140,943.40 : x
  2. Step 2: Convert to fraction form
    193,820.20/290,730.30 = 140,943.40/x
  3. Step 3: Cross multiply
    193,820.20x = 290,730.30 × 140,943.40
  4. Step 4: Simplify right side
    193,820.20x = 40,976,516,965.02
  5. Step 5: Solve for x
    x = 40,976,516,965.02/193,820.20
  6. Step 6: Final answer
    x = 211,415.10

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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.