Home / 455,721.20-683,614.20-140,177.60

Finding the Fourth Proportional to 455,721.20, 683,614.20 and 140,177.60

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Solution

The fourth proportional to 455,721.20, 683,614.20 and 140,177.60 is: 210,276.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,721.20 : 683,614.20 = 140,177.60 : x
  2. Step 2: Convert to fraction form
    455,721.20/683,614.20 = 140,177.60/x
  3. Step 3: Cross multiply
    455,721.20x = 683,614.20 × 140,177.60
  4. Step 4: Simplify right side
    455,721.20x = 95,827,397,881.92
  5. Step 5: Solve for x
    x = 95,827,397,881.92/455,721.20
  6. Step 6: Final answer
    x = 210,276.37

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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.