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Finding the Fourth Proportional to 369,578.78, 510,019.96 and 199,814.12

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Solution

The fourth proportional to 369,578.78, 510,019.96 and 199,814.12 is: 275,744.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,578.78 : 510,019.96 = 199,814.12 : x
  2. Step 2: Convert to fraction form
    369,578.78/510,019.96 = 199,814.12/x
  3. Step 3: Cross multiply
    369,578.78x = 510,019.96 × 199,814.12
  4. Step 4: Simplify right side
    369,578.78x = 101,909,189,489.84
  5. Step 5: Solve for x
    x = 101,909,189,489.84/369,578.78
  6. Step 6: Final answer
    x = 275,744.16

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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.