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Finding the Fourth Proportional to 253,075.68, 379,488.33 and 84,538.17

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Solution

The fourth proportional to 253,075.68, 379,488.33 and 84,538.17 is: 126,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,075.68 : 379,488.33 = 84,538.17 : x
  2. Step 2: Convert to fraction form
    253,075.68/379,488.33 = 84,538.17/x
  3. Step 3: Cross multiply
    253,075.68x = 379,488.33 × 84,538.17
  4. Step 4: Simplify right side
    253,075.68x = 32,081,248,954.56
  5. Step 5: Solve for x
    x = 32,081,248,954.56/253,075.68
  6. Step 6: Final answer
    x = 126,765.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.