Home / 347,914.80-521,872.20-207,946.80

Finding the Fourth Proportional to 347,914.80, 521,872.20 and 207,946.80

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Solution

The fourth proportional to 347,914.80, 521,872.20 and 207,946.80 is: 311,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,914.80 : 521,872.20 = 207,946.80 : x
  2. Step 2: Convert to fraction form
    347,914.80/521,872.20 = 207,946.80/x
  3. Step 3: Cross multiply
    347,914.80x = 521,872.20 × 207,946.80
  4. Step 4: Simplify right side
    347,914.80x = 108,521,653,998.96
  5. Step 5: Solve for x
    x = 108,521,653,998.96/347,914.80
  6. Step 6: Final answer
    x = 311,920.20

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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.