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Finding the Fourth Proportional to 455,760.96, 683,652.48 and 140,220.48

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Solution

The fourth proportional to 455,760.96, 683,652.48 and 140,220.48 is: 210,334.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,760.96 : 683,652.48 = 140,220.48 : x
  2. Step 2: Convert to fraction form
    455,760.96/683,652.48 = 140,220.48/x
  3. Step 3: Cross multiply
    455,760.96x = 683,652.48 × 140,220.48
  4. Step 4: Simplify right side
    455,760.96x = 95,862,078,898.79
  5. Step 5: Solve for x
    x = 95,862,078,898.79/455,760.96
  6. Step 6: Final answer
    x = 210,334.12

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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.