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Finding the Fourth Proportional to 377,944, 521,554.80 and 208,179.52

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Solution

The fourth proportional to 377,944, 521,554.80 and 208,179.52 is: 287,283.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,944 : 521,554.80 = 208,179.52 : x
  2. Step 2: Convert to fraction form
    377,944/521,554.80 = 208,179.52/x
  3. Step 3: Cross multiply
    377,944x = 521,554.80 × 208,179.52
  4. Step 4: Simplify right side
    377,944x = 108,577,027,917.70
  5. Step 5: Solve for x
    x = 108,577,027,917.70/377,944
  6. Step 6: Final answer
    x = 287,283.38

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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.