Home / 455,220.15-682,765.43-155,714.55

Finding the Fourth Proportional to 455,220.15, 682,765.43 and 155,714.55

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Solution

The fourth proportional to 455,220.15, 682,765.43 and 155,714.55 is: 233,549.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,220.15 : 682,765.43 = 155,714.55 : x
  2. Step 2: Convert to fraction form
    455,220.15/682,765.43 = 155,714.55/x
  3. Step 3: Cross multiply
    455,220.15x = 682,765.43 × 155,714.55
  4. Step 4: Simplify right side
    455,220.15x = 106,316,510,909.43
  5. Step 5: Solve for x
    x = 106,316,510,909.43/455,220.15
  6. Step 6: Final answer
    x = 233,549.66

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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.