Home / 397,124.51-548,035.40-215,836.88

Finding the Fourth Proportional to 397,124.51, 548,035.40 and 215,836.88

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Solution

The fourth proportional to 397,124.51, 548,035.40 and 215,836.88 is: 297,856.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,124.51 : 548,035.40 = 215,836.88 : x
  2. Step 2: Convert to fraction form
    397,124.51/548,035.40 = 215,836.88/x
  3. Step 3: Cross multiply
    397,124.51x = 548,035.40 × 215,836.88
  4. Step 4: Simplify right side
    397,124.51x = 118,286,248,664.97
  5. Step 5: Solve for x
    x = 118,286,248,664.97/397,124.51
  6. Step 6: Final answer
    x = 297,856.84

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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.