Home / 397,099.32-547,999.98-215,811.96

Finding the Fourth Proportional to 397,099.32, 547,999.98 and 215,811.96

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Solution

The fourth proportional to 397,099.32, 547,999.98 and 215,811.96 is: 297,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,099.32 : 547,999.98 = 215,811.96 : x
  2. Step 2: Convert to fraction form
    397,099.32/547,999.98 = 215,811.96/x
  3. Step 3: Cross multiply
    397,099.32x = 547,999.98 × 215,811.96
  4. Step 4: Simplify right side
    397,099.32x = 118,264,949,763.76
  5. Step 5: Solve for x
    x = 118,264,949,763.76/397,099.32
  6. Step 6: Final answer
    x = 297,822.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.