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Finding the Fourth Proportional to 370,120.86, 511,627.59 and 330,229.98

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Solution

The fourth proportional to 370,120.86, 511,627.59 and 330,229.98 is: 456,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,120.86 : 511,627.59 = 330,229.98 : x
  2. Step 2: Convert to fraction form
    370,120.86/511,627.59 = 330,229.98/x
  3. Step 3: Cross multiply
    370,120.86x = 511,627.59 × 330,229.98
  4. Step 4: Simplify right side
    370,120.86x = 168,954,768,813.15
  5. Step 5: Solve for x
    x = 168,954,768,813.15/370,120.86
  6. Step 6: Final answer
    x = 456,485.40

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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.