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Finding the Fourth Proportional to 307,659.60, 424,567.78 and 178,610.04

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Solution

The fourth proportional to 307,659.60, 424,567.78 and 178,610.04 is: 246,480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,659.60 : 424,567.78 = 178,610.04 : x
  2. Step 2: Convert to fraction form
    307,659.60/424,567.78 = 178,610.04/x
  3. Step 3: Cross multiply
    307,659.60x = 424,567.78 × 178,610.04
  4. Step 4: Simplify right side
    307,659.60x = 75,832,068,168.51
  5. Step 5: Solve for x
    x = 75,832,068,168.51/307,659.60
  6. Step 6: Final answer
    x = 246,480.42

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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.