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Finding the Fourth Proportional to 418,021.36, 576,873.64 and 227,038.48

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Solution

The fourth proportional to 418,021.36, 576,873.64 and 227,038.48 is: 313,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,021.36 : 576,873.64 = 227,038.48 : x
  2. Step 2: Convert to fraction form
    418,021.36/576,873.64 = 227,038.48/x
  3. Step 3: Cross multiply
    418,021.36x = 576,873.64 × 227,038.48
  4. Step 4: Simplify right side
    418,021.36x = 130,972,514,377.67
  5. Step 5: Solve for x
    x = 130,972,514,377.67/418,021.36
  6. Step 6: Final answer
    x = 313,315.36

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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.