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Finding the Fourth Proportional to 200,322.50, 300,507.50 and 125,448.89

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Solution

The fourth proportional to 200,322.50, 300,507.50 and 125,448.89 is: 188,188.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,322.50 : 300,507.50 = 125,448.89 : x
  2. Step 2: Convert to fraction form
    200,322.50/300,507.50 = 125,448.89/x
  3. Step 3: Cross multiply
    200,322.50x = 300,507.50 × 125,448.89
  4. Step 4: Simplify right side
    200,322.50x = 37,698,331,122.76
  5. Step 5: Solve for x
    x = 37,698,331,122.76/200,322.50
  6. Step 6: Final answer
    x = 188,188.21

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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.