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Finding the Fourth Proportional to 308,173.73, 425,410.73 and 187,353.60

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Solution

The fourth proportional to 308,173.73, 425,410.73 and 187,353.60 is: 258,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,173.73 : 425,410.73 = 187,353.60 : x
  2. Step 2: Convert to fraction form
    308,173.73/425,410.73 = 187,353.60/x
  3. Step 3: Cross multiply
    308,173.73x = 425,410.73 × 187,353.60
  4. Step 4: Simplify right side
    308,173.73x = 79,702,232,212.51
  5. Step 5: Solve for x
    x = 79,702,232,212.51/308,173.73
  6. Step 6: Final answer
    x = 258,627.60

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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.