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Finding the Fourth Proportional to 248,130.60, 372,160.64 and 79,629.12

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Solution

The fourth proportional to 248,130.60, 372,160.64 and 79,629.12 is: 119,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,130.60 : 372,160.64 = 79,629.12 : x
  2. Step 2: Convert to fraction form
    248,130.60/372,160.64 = 79,629.12/x
  3. Step 3: Cross multiply
    248,130.60x = 372,160.64 × 79,629.12
  4. Step 4: Simplify right side
    248,130.60x = 29,634,824,261.84
  5. Step 5: Solve for x
    x = 29,634,824,261.84/248,130.60
  6. Step 6: Final answer
    x = 119,432.36

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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.