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Finding the Fourth Proportional to 360,938.77, 498,089.47 and 199,790.37

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Solution

The fourth proportional to 360,938.77, 498,089.47 and 199,790.37 is: 275,707.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,938.77 : 498,089.47 = 199,790.37 : x
  2. Step 2: Convert to fraction form
    360,938.77/498,089.47 = 199,790.37/x
  3. Step 3: Cross multiply
    360,938.77x = 498,089.47 × 199,790.37
  4. Step 4: Simplify right side
    360,938.77x = 99,513,479,504.40
  5. Step 5: Solve for x
    x = 99,513,479,504.40/360,938.77
  6. Step 6: Final answer
    x = 275,707.37

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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.