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Finding the Fourth Proportional to 166,205.40, 249,235.20 and 66,332.40

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Solution

The fourth proportional to 166,205.40, 249,235.20 and 66,332.40 is: 99,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,205.40 : 249,235.20 = 66,332.40 : x
  2. Step 2: Convert to fraction form
    166,205.40/249,235.20 = 66,332.40/x
  3. Step 3: Cross multiply
    166,205.40x = 249,235.20 × 66,332.40
  4. Step 4: Simplify right side
    166,205.40x = 16,532,368,980.48
  5. Step 5: Solve for x
    x = 16,532,368,980.48/166,205.40
  6. Step 6: Final answer
    x = 99,469.51

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