Home / 321,918.52-482,869.32-153,557.86

Finding the Fourth Proportional to 321,918.52, 482,869.32 and 153,557.86

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Solution

The fourth proportional to 321,918.52, 482,869.32 and 153,557.86 is: 230,332.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,918.52 : 482,869.32 = 153,557.86 : x
  2. Step 2: Convert to fraction form
    321,918.52/482,869.32 = 153,557.86/x
  3. Step 3: Cross multiply
    321,918.52x = 482,869.32 × 153,557.86
  4. Step 4: Simplify right side
    321,918.52x = 74,148,379,438.86
  5. Step 5: Solve for x
    x = 74,148,379,438.86/321,918.52
  6. Step 6: Final answer
    x = 230,332.75

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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.