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Finding the Fourth Proportional to 344,455.04, 475,149.78 and 215,168.76

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Solution

The fourth proportional to 344,455.04, 475,149.78 and 215,168.76 is: 296,809.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,455.04 : 475,149.78 = 215,168.76 : x
  2. Step 2: Convert to fraction form
    344,455.04/475,149.78 = 215,168.76/x
  3. Step 3: Cross multiply
    344,455.04x = 475,149.78 × 215,168.76
  4. Step 4: Simplify right side
    344,455.04x = 102,237,388,976.87
  5. Step 5: Solve for x
    x = 102,237,388,976.87/344,455.04
  6. Step 6: Final answer
    x = 296,809.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.