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Finding the Fourth Proportional to 249,137.60, 373,765.73 and 80,658

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Solution

The fourth proportional to 249,137.60, 373,765.73 and 80,658 is: 121,006.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,137.60 : 373,765.73 = 80,658 : x
  2. Step 2: Convert to fraction form
    249,137.60/373,765.73 = 80,658/x
  3. Step 3: Cross multiply
    249,137.60x = 373,765.73 × 80,658
  4. Step 4: Simplify right side
    249,137.60x = 30,147,195,847.05
  5. Step 5: Solve for x
    x = 30,147,195,847.05/249,137.60
  6. Step 6: Final answer
    x = 121,006.21

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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.