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Finding the Fourth Proportional to 372,458.55, 514,004.46 and 211,320.39

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Solution

The fourth proportional to 372,458.55, 514,004.46 and 211,320.39 is: 291,628.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,458.55 : 514,004.46 = 211,320.39 : x
  2. Step 2: Convert to fraction form
    372,458.55/514,004.46 = 211,320.39/x
  3. Step 3: Cross multiply
    372,458.55x = 514,004.46 × 211,320.39
  4. Step 4: Simplify right side
    372,458.55x = 108,619,622,948.94
  5. Step 5: Solve for x
    x = 108,619,622,948.94/372,458.55
  6. Step 6: Final answer
    x = 291,628.75

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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.