Home / 372,913.20-514,418.04-221,981.04

Finding the Fourth Proportional to 372,913.20, 514,418.04 and 221,981.04

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Solution

The fourth proportional to 372,913.20, 514,418.04 and 221,981.04 is: 306,213.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,913.20 : 514,418.04 = 221,981.04 : x
  2. Step 2: Convert to fraction form
    372,913.20/514,418.04 = 221,981.04/x
  3. Step 3: Cross multiply
    372,913.20x = 514,418.04 × 221,981.04
  4. Step 4: Simplify right side
    372,913.20x = 114,191,051,513.96
  5. Step 5: Solve for x
    x = 114,191,051,513.96/372,913.20
  6. Step 6: Final answer
    x = 306,213.49

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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.