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Finding the Fourth Proportional to 374,087.75, 515,153.79 and 325,006.68

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Solution

The fourth proportional to 374,087.75, 515,153.79 and 325,006.68 is: 447,564.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,087.75 : 515,153.79 = 325,006.68 : x
  2. Step 2: Convert to fraction form
    374,087.75/515,153.79 = 325,006.68/x
  3. Step 3: Cross multiply
    374,087.75x = 515,153.79 × 325,006.68
  4. Step 4: Simplify right side
    374,087.75x = 167,428,422,977.32
  5. Step 5: Solve for x
    x = 167,428,422,977.32/374,087.75
  6. Step 6: Final answer
    x = 447,564.57

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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.