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Finding the Fourth Proportional to 441,077.08, 661,640.64 and 125,509

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Solution

The fourth proportional to 441,077.08, 661,640.64 and 125,509 is: 188,270.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,077.08 : 661,640.64 = 125,509 : x
  2. Step 2: Convert to fraction form
    441,077.08/661,640.64 = 125,509/x
  3. Step 3: Cross multiply
    441,077.08x = 661,640.64 × 125,509
  4. Step 4: Simplify right side
    441,077.08x = 83,041,855,085.76
  5. Step 5: Solve for x
    x = 83,041,855,085.76/441,077.08
  6. Step 6: Final answer
    x = 188,270.62

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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.