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Finding the Fourth Proportional to 418,010.21, 576,860.72 and 236,717.22

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Solution

The fourth proportional to 418,010.21, 576,860.72 and 236,717.22 is: 326,673.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,010.21 : 576,860.72 = 236,717.22 : x
  2. Step 2: Convert to fraction form
    418,010.21/576,860.72 = 236,717.22/x
  3. Step 3: Cross multiply
    418,010.21x = 576,860.72 × 236,717.22
  4. Step 4: Simplify right side
    418,010.21x = 136,552,864,782.01
  5. Step 5: Solve for x
    x = 136,552,864,782.01/418,010.21
  6. Step 6: Final answer
    x = 326,673.52

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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.