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Finding the Fourth Proportional to 350,807.06, 526,203.30 and 140,388.50

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Solution

The fourth proportional to 350,807.06, 526,203.30 and 140,388.50 is: 210,579.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,807.06 : 526,203.30 = 140,388.50 : x
  2. Step 2: Convert to fraction form
    350,807.06/526,203.30 = 140,388.50/x
  3. Step 3: Cross multiply
    350,807.06x = 526,203.30 × 140,388.50
  4. Step 4: Simplify right side
    350,807.06x = 73,872,891,982.05
  5. Step 5: Solve for x
    x = 73,872,891,982.05/350,807.06
  6. Step 6: Final answer
    x = 210,579.83

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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.