Home / 347,623.40-521,435.10-268,891.40

Finding the Fourth Proportional to 347,623.40, 521,435.10 and 268,891.40

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Solution

The fourth proportional to 347,623.40, 521,435.10 and 268,891.40 is: 403,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,623.40 : 521,435.10 = 268,891.40 : x
  2. Step 2: Convert to fraction form
    347,623.40/521,435.10 = 268,891.40/x
  3. Step 3: Cross multiply
    347,623.40x = 521,435.10 × 268,891.40
  4. Step 4: Simplify right side
    347,623.40x = 140,209,414,048.14
  5. Step 5: Solve for x
    x = 140,209,414,048.14/347,623.40
  6. Step 6: Final answer
    x = 403,337.10

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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.