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Finding the Fourth Proportional to 248,365.60, 372,551.81 and 70,872.55

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Solution

The fourth proportional to 248,365.60, 372,551.81 and 70,872.55 is: 106,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,365.60 : 372,551.81 = 70,872.55 : x
  2. Step 2: Convert to fraction form
    248,365.60/372,551.81 = 70,872.55/x
  3. Step 3: Cross multiply
    248,365.60x = 372,551.81 × 70,872.55
  4. Step 4: Simplify right side
    248,365.60x = 26,403,696,781.82
  5. Step 5: Solve for x
    x = 26,403,696,781.82/248,365.60
  6. Step 6: Final answer
    x = 106,309.80

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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.