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Finding the Fourth Proportional to 250,602.78, 345,830.33 and 135,880.25

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Solution

The fourth proportional to 250,602.78, 345,830.33 and 135,880.25 is: 187,513.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,602.78 : 345,830.33 = 135,880.25 : x
  2. Step 2: Convert to fraction form
    250,602.78/345,830.33 = 135,880.25/x
  3. Step 3: Cross multiply
    250,602.78x = 345,830.33 × 135,880.25
  4. Step 4: Simplify right side
    250,602.78x = 46,991,509,289.43
  5. Step 5: Solve for x
    x = 46,991,509,289.43/250,602.78
  6. Step 6: Final answer
    x = 187,513.92

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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.