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Finding the Fourth Proportional to 304,279.80, 455,544.90 and 269,287.80

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Solution

The fourth proportional to 304,279.80, 455,544.90 and 269,287.80 is: 403,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,279.80 : 455,544.90 = 269,287.80 : x
  2. Step 2: Convert to fraction form
    304,279.80/455,544.90 = 269,287.80/x
  3. Step 3: Cross multiply
    304,279.80x = 455,544.90 × 269,287.80
  4. Step 4: Simplify right side
    304,279.80x = 122,672,683,922.22
  5. Step 5: Solve for x
    x = 122,672,683,922.22/304,279.80
  6. Step 6: Final answer
    x = 403,157.50

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1.5x scale

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.