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Finding the Fourth Proportional to 371,019.64, 511,438.98 and 227,513.56

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Solution

The fourth proportional to 371,019.64, 511,438.98 and 227,513.56 is: 313,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,019.64 : 511,438.98 = 227,513.56 : x
  2. Step 2: Convert to fraction form
    371,019.64/511,438.98 = 227,513.56/x
  3. Step 3: Cross multiply
    371,019.64x = 511,438.98 × 227,513.56
  4. Step 4: Simplify right side
    371,019.64x = 116,359,303,062.57
  5. Step 5: Solve for x
    x = 116,359,303,062.57/371,019.64
  6. Step 6: Final answer
    x = 313,620.33

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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.