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Finding the Fourth Proportional to 382,418.70, 573,510.45 and 126,203.82

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Solution

The fourth proportional to 382,418.70, 573,510.45 and 126,203.82 is: 189,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,418.70 : 573,510.45 = 126,203.82 : x
  2. Step 2: Convert to fraction form
    382,418.70/573,510.45 = 126,203.82/x
  3. Step 3: Cross multiply
    382,418.70x = 573,510.45 × 126,203.82
  4. Step 4: Simplify right side
    382,418.70x = 72,379,209,599.92
  5. Step 5: Solve for x
    x = 72,379,209,599.92/382,418.70
  6. Step 6: Final answer
    x = 189,266.92

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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.