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Finding the Fourth Proportional to 166,402.80, 249,604.20 and 103,417.20

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Solution

The fourth proportional to 166,402.80, 249,604.20 and 103,417.20 is: 155,125.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,402.80 : 249,604.20 = 103,417.20 : x
  2. Step 2: Convert to fraction form
    166,402.80/249,604.20 = 103,417.20/x
  3. Step 3: Cross multiply
    166,402.80x = 249,604.20 × 103,417.20
  4. Step 4: Simplify right side
    166,402.80x = 25,813,367,472.24
  5. Step 5: Solve for x
    x = 25,813,367,472.24/166,402.80
  6. Step 6: Final answer
    x = 155,125.80

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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.