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Finding the Fourth Proportional to 321,911.52, 482,858.82 and 153,550.86

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Solution

The fourth proportional to 321,911.52, 482,858.82 and 153,550.86 is: 230,322.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,911.52 : 482,858.82 = 153,550.86 : x
  2. Step 2: Convert to fraction form
    321,911.52/482,858.82 = 153,550.86/x
  3. Step 3: Cross multiply
    321,911.52x = 482,858.82 × 153,550.86
  4. Step 4: Simplify right side
    321,911.52x = 74,143,387,069.59
  5. Step 5: Solve for x
    x = 74,143,387,069.59/321,911.52
  6. Step 6: Final answer
    x = 230,322.25

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1.5x scale

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.