Home / 353,076.60-487,286.52-209,835.38

Finding the Fourth Proportional to 353,076.60, 487,286.52 and 209,835.38

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Solution

The fourth proportional to 353,076.60, 487,286.52 and 209,835.38 is: 289,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,076.60 : 487,286.52 = 209,835.38 : x
  2. Step 2: Convert to fraction form
    353,076.60/487,286.52 = 209,835.38/x
  3. Step 3: Cross multiply
    353,076.60x = 487,286.52 × 209,835.38
  4. Step 4: Simplify right side
    353,076.60x = 102,249,952,093.08
  5. Step 5: Solve for x
    x = 102,249,952,093.08/353,076.60
  6. Step 6: Final answer
    x = 289,597.08

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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.