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Finding the Fourth Proportional to 166,389.30, 249,620.40 and 54,050.40

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Solution

The fourth proportional to 166,389.30, 249,620.40 and 54,050.40 is: 81,087.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,389.30 : 249,620.40 = 54,050.40 : x
  2. Step 2: Convert to fraction form
    166,389.30/249,620.40 = 54,050.40/x
  3. Step 3: Cross multiply
    166,389.30x = 249,620.40 × 54,050.40
  4. Step 4: Simplify right side
    166,389.30x = 13,492,082,468.16
  5. Step 5: Solve for x
    x = 13,492,082,468.16/166,389.30
  6. Step 6: Final answer
    x = 81,087.44

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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.