Home / 373,566.78-515,579.91-220,621.50

Finding the Fourth Proportional to 373,566.78, 515,579.91 and 220,621.50

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Solution

The fourth proportional to 373,566.78, 515,579.91 and 220,621.50 is: 304,491.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,566.78 : 515,579.91 = 220,621.50 : x
  2. Step 2: Convert to fraction form
    373,566.78/515,579.91 = 220,621.50/x
  3. Step 3: Cross multiply
    373,566.78x = 515,579.91 × 220,621.50
  4. Step 4: Simplify right side
    373,566.78x = 113,748,013,114.07
  5. Step 5: Solve for x
    x = 113,748,013,114.07/373,566.78
  6. Step 6: Final answer
    x = 304,491.78

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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.