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Finding the Fourth Proportional to 370,889.44, 556,357.68 and 143,293.60

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Solution

The fourth proportional to 370,889.44, 556,357.68 and 143,293.60 is: 214,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,889.44 : 556,357.68 = 143,293.60 : x
  2. Step 2: Convert to fraction form
    370,889.44/556,357.68 = 143,293.60/x
  3. Step 3: Cross multiply
    370,889.44x = 556,357.68 × 143,293.60
  4. Step 4: Simplify right side
    370,889.44x = 79,722,494,854.85
  5. Step 5: Solve for x
    x = 79,722,494,854.85/370,889.44
  6. Step 6: Final answer
    x = 214,949.49

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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.