Home / 231,479.37-319,575.38-154,015.83

Finding the Fourth Proportional to 231,479.37, 319,575.38 and 154,015.83

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Solution

The fourth proportional to 231,479.37, 319,575.38 and 154,015.83 is: 212,630.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,479.37 : 319,575.38 = 154,015.83 : x
  2. Step 2: Convert to fraction form
    231,479.37/319,575.38 = 154,015.83/x
  3. Step 3: Cross multiply
    231,479.37x = 319,575.38 × 154,015.83
  4. Step 4: Simplify right side
    231,479.37x = 49,219,666,628.19
  5. Step 5: Solve for x
    x = 49,219,666,628.19/231,479.37
  6. Step 6: Final answer
    x = 212,630.90

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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.