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Finding the Fourth Proportional to 318,665.36, 478,293.42 and 161,004.62

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Solution

The fourth proportional to 318,665.36, 478,293.42 and 161,004.62 is: 241,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,665.36 : 478,293.42 = 161,004.62 : x
  2. Step 2: Convert to fraction form
    318,665.36/478,293.42 = 161,004.62/x
  3. Step 3: Cross multiply
    318,665.36x = 478,293.42 × 161,004.62
  4. Step 4: Simplify right side
    318,665.36x = 77,007,450,335.60
  5. Step 5: Solve for x
    x = 77,007,450,335.60/318,665.36
  6. Step 6: Final answer
    x = 241,656.17

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1.5x scale

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.