Home / 376,783.36-519,960.20-215,641.55

Finding the Fourth Proportional to 376,783.36, 519,960.20 and 215,641.55

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Solution

The fourth proportional to 376,783.36, 519,960.20 and 215,641.55 is: 297,584.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,783.36 : 519,960.20 = 215,641.55 : x
  2. Step 2: Convert to fraction form
    376,783.36/519,960.20 = 215,641.55/x
  3. Step 3: Cross multiply
    376,783.36x = 519,960.20 × 215,641.55
  4. Step 4: Simplify right side
    376,783.36x = 112,125,023,688.00
  5. Step 5: Solve for x
    x = 112,125,023,688.00/376,783.36
  6. Step 6: Final answer
    x = 297,584.86

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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.