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Finding the Fourth Proportional to 207,801.16, 311,701.74 and 166,510.60

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Solution

The fourth proportional to 207,801.16, 311,701.74 and 166,510.60 is: 249,765.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,801.16 : 311,701.74 = 166,510.60 : x
  2. Step 2: Convert to fraction form
    207,801.16/311,701.74 = 166,510.60/x
  3. Step 3: Cross multiply
    207,801.16x = 311,701.74 × 166,510.60
  4. Step 4: Simplify right side
    207,801.16x = 51,901,643,748.44
  5. Step 5: Solve for x
    x = 51,901,643,748.44/207,801.16
  6. Step 6: Final answer
    x = 249,765.90

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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.