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Finding the Fourth Proportional to 303,081.21, 418,223.52 and 175,743

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Solution

The fourth proportional to 303,081.21, 418,223.52 and 175,743 is: 242,508.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,081.21 : 418,223.52 = 175,743 : x
  2. Step 2: Convert to fraction form
    303,081.21/418,223.52 = 175,743/x
  3. Step 3: Cross multiply
    303,081.21x = 418,223.52 × 175,743
  4. Step 4: Simplify right side
    303,081.21x = 73,499,856,075.36
  5. Step 5: Solve for x
    x = 73,499,856,075.36/303,081.21
  6. Step 6: Final answer
    x = 242,508.79

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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.