Home / 455,001.40-682,502.10-218,222.20

Finding the Fourth Proportional to 455,001.40, 682,502.10 and 218,222.20

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Solution

The fourth proportional to 455,001.40, 682,502.10 and 218,222.20 is: 327,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,001.40 : 682,502.10 = 218,222.20 : x
  2. Step 2: Convert to fraction form
    455,001.40/682,502.10 = 218,222.20/x
  3. Step 3: Cross multiply
    455,001.40x = 682,502.10 × 218,222.20
  4. Step 4: Simplify right side
    455,001.40x = 148,937,109,766.62
  5. Step 5: Solve for x
    x = 148,937,109,766.62/455,001.40
  6. Step 6: Final answer
    x = 327,333.30

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1.5x scale

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.