Home / 305,762.45-422,152.02-198,637.79

Finding the Fourth Proportional to 305,762.45, 422,152.02 and 198,637.79

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Solution

The fourth proportional to 305,762.45, 422,152.02 and 198,637.79 is: 274,249.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,762.45 : 422,152.02 = 198,637.79 : x
  2. Step 2: Convert to fraction form
    305,762.45/422,152.02 = 198,637.79/x
  3. Step 3: Cross multiply
    305,762.45x = 422,152.02 × 198,637.79
  4. Step 4: Simplify right side
    305,762.45x = 83,855,342,186.08
  5. Step 5: Solve for x
    x = 83,855,342,186.08/305,762.45
  6. Step 6: Final answer
    x = 274,249.97

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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.