Home / 347,215.91-520,820.15-263,490.26

Finding the Fourth Proportional to 347,215.91, 520,820.15 and 263,490.26

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Solution

The fourth proportional to 347,215.91, 520,820.15 and 263,490.26 is: 395,232.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,215.91 : 520,820.15 = 263,490.26 : x
  2. Step 2: Convert to fraction form
    347,215.91/520,820.15 = 263,490.26/x
  3. Step 3: Cross multiply
    347,215.91x = 520,820.15 × 263,490.26
  4. Step 4: Simplify right side
    347,215.91x = 137,231,032,815.19
  5. Step 5: Solve for x
    x = 137,231,032,815.19/347,215.91
  6. Step 6: Final answer
    x = 395,232.57

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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.