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Finding the Fourth Proportional to 455,995.57, 684,066.86 and 140,452.33

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Solution

The fourth proportional to 455,995.57, 684,066.86 and 140,452.33 is: 210,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,995.57 : 684,066.86 = 140,452.33 : x
  2. Step 2: Convert to fraction form
    455,995.57/684,066.86 = 140,452.33/x
  3. Step 3: Cross multiply
    455,995.57x = 684,066.86 × 140,452.33
  4. Step 4: Simplify right side
    455,995.57x = 96,078,783,660.52
  5. Step 5: Solve for x
    x = 96,078,783,660.52/455,995.57
  6. Step 6: Final answer
    x = 210,701.13

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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.