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Finding the Fourth Proportional to 418,301.58, 577,305.39 and 248,535.70

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Solution

The fourth proportional to 418,301.58, 577,305.39 and 248,535.70 is: 343,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,301.58 : 577,305.39 = 248,535.70 : x
  2. Step 2: Convert to fraction form
    418,301.58/577,305.39 = 248,535.70/x
  3. Step 3: Cross multiply
    418,301.58x = 577,305.39 × 248,535.70
  4. Step 4: Simplify right side
    418,301.58x = 143,481,000,555.50
  5. Step 5: Solve for x
    x = 143,481,000,555.50/418,301.58
  6. Step 6: Final answer
    x = 343,008.51

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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.