Home / 251,820.80-377,731.20-140,998.40

Finding the Fourth Proportional to 251,820.80, 377,731.20 and 140,998.40

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Solution

The fourth proportional to 251,820.80, 377,731.20 and 140,998.40 is: 211,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,820.80 : 377,731.20 = 140,998.40 : x
  2. Step 2: Convert to fraction form
    251,820.80/377,731.20 = 140,998.40/x
  3. Step 3: Cross multiply
    251,820.80x = 377,731.20 × 140,998.40
  4. Step 4: Simplify right side
    251,820.80x = 53,259,494,830.08
  5. Step 5: Solve for x
    x = 53,259,494,830.08/251,820.80
  6. Step 6: Final answer
    x = 211,497.60

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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.