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Finding the Fourth Proportional to 206,303.83, 309,460.07 and 66,062.05

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Solution

The fourth proportional to 206,303.83, 309,460.07 and 66,062.05 is: 99,094.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,303.83 : 309,460.07 = 66,062.05 : x
  2. Step 2: Convert to fraction form
    206,303.83/309,460.07 = 66,062.05/x
  3. Step 3: Cross multiply
    206,303.83x = 309,460.07 × 66,062.05
  4. Step 4: Simplify right side
    206,303.83x = 20,443,566,617.34
  5. Step 5: Solve for x
    x = 20,443,566,617.34/206,303.83
  6. Step 6: Final answer
    x = 99,094.46

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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.