Home / 418,131.32-577,018.38-227,143.04

Finding the Fourth Proportional to 418,131.32, 577,018.38 and 227,143.04

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Solution

The fourth proportional to 418,131.32, 577,018.38 and 227,143.04 is: 313,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,131.32 : 577,018.38 = 227,143.04 : x
  2. Step 2: Convert to fraction form
    418,131.32/577,018.38 = 227,143.04/x
  3. Step 3: Cross multiply
    418,131.32x = 577,018.38 × 227,143.04
  4. Step 4: Simplify right side
    418,131.32x = 131,065,706,935.77
  5. Step 5: Solve for x
    x = 131,065,706,935.77/418,131.32
  6. Step 6: Final answer
    x = 313,455.85

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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.