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Finding the Fourth Proportional to 366,989.10, 550,483.65 and 266,937.90

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Solution

The fourth proportional to 366,989.10, 550,483.65 and 266,937.90 is: 400,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,989.10 : 550,483.65 = 266,937.90 : x
  2. Step 2: Convert to fraction form
    366,989.10/550,483.65 = 266,937.90/x
  3. Step 3: Cross multiply
    366,989.10x = 550,483.65 × 266,937.90
  4. Step 4: Simplify right side
    366,989.10x = 146,944,949,515.34
  5. Step 5: Solve for x
    x = 146,944,949,515.34/366,989.10
  6. Step 6: Final answer
    x = 400,406.85

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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.