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Finding the Fourth Proportional to 418,239.51, 577,174.04 and 227,252.90

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Solution

The fourth proportional to 418,239.51, 577,174.04 and 227,252.90 is: 313,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,239.51 : 577,174.04 = 227,252.90 : x
  2. Step 2: Convert to fraction form
    418,239.51/577,174.04 = 227,252.90/x
  3. Step 3: Cross multiply
    418,239.51x = 577,174.04 × 227,252.90
  4. Step 4: Simplify right side
    418,239.51x = 131,164,470,372.58
  5. Step 5: Solve for x
    x = 131,164,470,372.58/418,239.51
  6. Step 6: Final answer
    x = 313,610.90

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1.5x scale

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.