Home / 418,211.07-577,129.77-227,222.79

Finding the Fourth Proportional to 418,211.07, 577,129.77 and 227,222.79

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Solution

The fourth proportional to 418,211.07, 577,129.77 and 227,222.79 is: 313,566.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,211.07 : 577,129.77 = 227,222.79 : x
  2. Step 2: Convert to fraction form
    418,211.07/577,129.77 = 227,222.79/x
  3. Step 3: Cross multiply
    418,211.07x = 577,129.77 × 227,222.79
  4. Step 4: Simplify right side
    418,211.07x = 131,137,036,531.46
  5. Step 5: Solve for x
    x = 131,137,036,531.46/418,211.07
  6. Step 6: Final answer
    x = 313,566.63

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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.