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Finding the Fourth Proportional to 250,349.75, 345,482.21 and 135,631.28

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Solution

The fourth proportional to 250,349.75, 345,482.21 and 135,631.28 is: 187,170.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,349.75 : 345,482.21 = 135,631.28 : x
  2. Step 2: Convert to fraction form
    250,349.75/345,482.21 = 135,631.28/x
  3. Step 3: Cross multiply
    250,349.75x = 345,482.21 × 135,631.28
  4. Step 4: Simplify right side
    250,349.75x = 46,858,193,681.37
  5. Step 5: Solve for x
    x = 46,858,193,681.37/250,349.75
  6. Step 6: Final answer
    x = 187,170.93

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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.