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Finding the Fourth Proportional to 207,365.44, 311,422.88 and 190,694.72

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Solution

The fourth proportional to 207,365.44, 311,422.88 and 190,694.72 is: 286,386.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,365.44 : 311,422.88 = 190,694.72 : x
  2. Step 2: Convert to fraction form
    207,365.44/311,422.88 = 190,694.72/x
  3. Step 3: Cross multiply
    207,365.44x = 311,422.88 × 190,694.72
  4. Step 4: Simplify right side
    207,365.44x = 59,386,698,903.19
  5. Step 5: Solve for x
    x = 59,386,698,903.19/207,365.44
  6. Step 6: Final answer
    x = 286,386.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.