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Finding the Fourth Proportional to 325,936.30, 488,904.45 and 312,814.30

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Solution

The fourth proportional to 325,936.30, 488,904.45 and 312,814.30 is: 469,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,936.30 : 488,904.45 = 312,814.30 : x
  2. Step 2: Convert to fraction form
    325,936.30/488,904.45 = 312,814.30/x
  3. Step 3: Cross multiply
    325,936.30x = 488,904.45 × 312,814.30
  4. Step 4: Simplify right side
    325,936.30x = 152,936,303,293.64
  5. Step 5: Solve for x
    x = 152,936,303,293.64/325,936.30
  6. Step 6: Final answer
    x = 469,221.45

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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.