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Finding the Fourth Proportional to 284,973.90, 393,168.99 and 168,693.54

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Solution

The fourth proportional to 284,973.90, 393,168.99 and 168,693.54 is: 232,740.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,973.90 : 393,168.99 = 168,693.54 : x
  2. Step 2: Convert to fraction form
    284,973.90/393,168.99 = 168,693.54/x
  3. Step 3: Cross multiply
    284,973.90x = 393,168.99 × 168,693.54
  4. Step 4: Simplify right side
    284,973.90x = 66,325,068,741.32
  5. Step 5: Solve for x
    x = 66,325,068,741.32/284,973.90
  6. Step 6: Final answer
    x = 232,740.85

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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.