Home / 319,976.42-480,036.22-120,298.54

Finding the Fourth Proportional to 319,976.42, 480,036.22 and 120,298.54

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Solution

The fourth proportional to 319,976.42, 480,036.22 and 120,298.54 is: 180,474.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,976.42 : 480,036.22 = 120,298.54 : x
  2. Step 2: Convert to fraction form
    319,976.42/480,036.22 = 120,298.54/x
  3. Step 3: Cross multiply
    319,976.42x = 480,036.22 × 120,298.54
  4. Step 4: Simplify right side
    319,976.42x = 57,747,653,411.45
  5. Step 5: Solve for x
    x = 57,747,653,411.45/319,976.42
  6. Step 6: Final answer
    x = 180,474.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.