Home / 207,477.20-311,181.48-74,337.68

Finding the Fourth Proportional to 207,477.20, 311,181.48 and 74,337.68

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Solution

The fourth proportional to 207,477.20, 311,181.48 and 74,337.68 is: 111,494.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,477.20 : 311,181.48 = 74,337.68 : x
  2. Step 2: Convert to fraction form
    207,477.20/311,181.48 = 74,337.68/x
  3. Step 3: Cross multiply
    207,477.20x = 311,181.48 × 74,337.68
  4. Step 4: Simplify right side
    207,477.20x = 23,132,509,282.17
  5. Step 5: Solve for x
    x = 23,132,509,282.17/207,477.20
  6. Step 6: Final answer
    x = 111,494.22

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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.