Home / 418,154.20-577,102.27-248,389

Finding the Fourth Proportional to 418,154.20, 577,102.27 and 248,389

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Solution

The fourth proportional to 418,154.20, 577,102.27 and 248,389 is: 342,806.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,154.20 : 577,102.27 = 248,389 : x
  2. Step 2: Convert to fraction form
    418,154.20/577,102.27 = 248,389/x
  3. Step 3: Cross multiply
    418,154.20x = 577,102.27 × 248,389
  4. Step 4: Simplify right side
    418,154.20x = 143,345,855,743.03
  5. Step 5: Solve for x
    x = 143,345,855,743.03/418,154.20
  6. Step 6: Final answer
    x = 342,806.21

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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.