Home / 397,327.50-548,312.04-218,479.50

Finding the Fourth Proportional to 397,327.50, 548,312.04 and 218,479.50

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Solution

The fourth proportional to 397,327.50, 548,312.04 and 218,479.50 is: 301,501.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,327.50 : 548,312.04 = 218,479.50 : x
  2. Step 2: Convert to fraction form
    397,327.50/548,312.04 = 218,479.50/x
  3. Step 3: Cross multiply
    397,327.50x = 548,312.04 × 218,479.50
  4. Step 4: Simplify right side
    397,327.50x = 119,794,940,343.18
  5. Step 5: Solve for x
    x = 119,794,940,343.18/397,327.50
  6. Step 6: Final answer
    x = 301,501.76

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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.