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Finding the Fourth Proportional to 150,716.80, 226,075.20 and 115,287.40

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Solution

The fourth proportional to 150,716.80, 226,075.20 and 115,287.40 is: 172,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,716.80 : 226,075.20 = 115,287.40 : x
  2. Step 2: Convert to fraction form
    150,716.80/226,075.20 = 115,287.40/x
  3. Step 3: Cross multiply
    150,716.80x = 226,075.20 × 115,287.40
  4. Step 4: Simplify right side
    150,716.80x = 26,063,622,012.48
  5. Step 5: Solve for x
    x = 26,063,622,012.48/150,716.80
  6. Step 6: Final answer
    x = 172,931.10

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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.