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Finding the Fourth Proportional to 369,663.75, 510,137.19 and 199,899.09

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Solution

The fourth proportional to 369,663.75, 510,137.19 and 199,899.09 is: 275,861.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,663.75 : 510,137.19 = 199,899.09 : x
  2. Step 2: Convert to fraction form
    369,663.75/510,137.19 = 199,899.09/x
  3. Step 3: Cross multiply
    369,663.75x = 510,137.19 × 199,899.09
  4. Step 4: Simplify right side
    369,663.75x = 101,975,960,056.16
  5. Step 5: Solve for x
    x = 101,975,960,056.16/369,663.75
  6. Step 6: Final answer
    x = 275,861.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.