Home / 371,235.96-511,918.38-220,303.80

Finding the Fourth Proportional to 371,235.96, 511,918.38 and 220,303.80

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Solution

The fourth proportional to 371,235.96, 511,918.38 and 220,303.80 is: 303,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,235.96 : 511,918.38 = 220,303.80 : x
  2. Step 2: Convert to fraction form
    371,235.96/511,918.38 = 220,303.80/x
  3. Step 3: Cross multiply
    371,235.96x = 511,918.38 × 220,303.80
  4. Step 4: Simplify right side
    371,235.96x = 112,777,564,403.84
  5. Step 5: Solve for x
    x = 112,777,564,403.84/371,235.96
  6. Step 6: Final answer
    x = 303,789.44

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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.