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Finding the Fourth Proportional to 424,198.50, 636,297.89 and 124,679.13

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Solution

The fourth proportional to 424,198.50, 636,297.89 and 124,679.13 is: 187,018.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,198.50 : 636,297.89 = 124,679.13 : x
  2. Step 2: Convert to fraction form
    424,198.50/636,297.89 = 124,679.13/x
  3. Step 3: Cross multiply
    424,198.50x = 636,297.89 × 124,679.13
  4. Step 4: Simplify right side
    424,198.50x = 79,333,066,722.64
  5. Step 5: Solve for x
    x = 79,333,066,722.64/424,198.50
  6. Step 6: Final answer
    x = 187,018.73

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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.