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Finding the Fourth Proportional to 370,883.58, 511,884.86 and 217,921.74

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Solution

The fourth proportional to 370,883.58, 511,884.86 and 217,921.74 is: 300,770.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,883.58 : 511,884.86 = 217,921.74 : x
  2. Step 2: Convert to fraction form
    370,883.58/511,884.86 = 217,921.74/x
  3. Step 3: Cross multiply
    370,883.58x = 511,884.86 × 217,921.74
  4. Step 4: Simplify right side
    370,883.58x = 111,550,839,370.86
  5. Step 5: Solve for x
    x = 111,550,839,370.86/370,883.58
  6. Step 6: Final answer
    x = 300,770.50

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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.