Home / 355,787.38-490,932.98-202,838.86

Finding the Fourth Proportional to 355,787.38, 490,932.98 and 202,838.86

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Solution

The fourth proportional to 355,787.38, 490,932.98 and 202,838.86 is: 279,887.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,787.38 : 490,932.98 = 202,838.86 : x
  2. Step 2: Convert to fraction form
    355,787.38/490,932.98 = 202,838.86/x
  3. Step 3: Cross multiply
    355,787.38x = 490,932.98 × 202,838.86
  4. Step 4: Simplify right side
    355,787.38x = 99,580,285,999.60
  5. Step 5: Solve for x
    x = 99,580,285,999.60/355,787.38
  6. Step 6: Final answer
    x = 279,887.07

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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.