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Finding the Fourth Proportional to 369,757.36, 510,265.20 and 199,991.49

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Solution

The fourth proportional to 369,757.36, 510,265.20 and 199,991.49 is: 275,988.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,757.36 : 510,265.20 = 199,991.49 : x
  2. Step 2: Convert to fraction form
    369,757.36/510,265.20 = 199,991.49/x
  3. Step 3: Cross multiply
    369,757.36x = 510,265.20 × 199,991.49
  4. Step 4: Simplify right side
    369,757.36x = 102,048,697,643.15
  5. Step 5: Solve for x
    x = 102,048,697,643.15/369,757.36
  6. Step 6: Final answer
    x = 275,988.28

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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.