Home / 347,719.80-521,190.90-148,006.20

Finding the Fourth Proportional to 347,719.80, 521,190.90 and 148,006.20

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Solution

The fourth proportional to 347,719.80, 521,190.90 and 148,006.20 is: 221,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,719.80 : 521,190.90 = 148,006.20 : x
  2. Step 2: Convert to fraction form
    347,719.80/521,190.90 = 148,006.20/x
  3. Step 3: Cross multiply
    347,719.80x = 521,190.90 × 148,006.20
  4. Step 4: Simplify right side
    347,719.80x = 77,139,484,583.58
  5. Step 5: Solve for x
    x = 77,139,484,583.58/347,719.80
  6. Step 6: Final answer
    x = 221,843.81

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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.