Home / 455,740.48-683,612.40-140,195.20

Finding the Fourth Proportional to 455,740.48, 683,612.40 and 140,195.20

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Solution

The fourth proportional to 455,740.48, 683,612.40 and 140,195.20 is: 210,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,740.48 : 683,612.40 = 140,195.20 : x
  2. Step 2: Convert to fraction form
    455,740.48/683,612.40 = 140,195.20/x
  3. Step 3: Cross multiply
    455,740.48x = 683,612.40 × 140,195.20
  4. Step 4: Simplify right side
    455,740.48x = 95,839,177,140.48
  5. Step 5: Solve for x
    x = 95,839,177,140.48/455,740.48
  6. Step 6: Final answer
    x = 210,293.32

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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.