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Finding the Fourth Proportional to 308,893.60, 463,340.40 and 109,212.40

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Solution

The fourth proportional to 308,893.60, 463,340.40 and 109,212.40 is: 163,818.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,893.60 : 463,340.40 = 109,212.40 : x
  2. Step 2: Convert to fraction form
    308,893.60/463,340.40 = 109,212.40/x
  3. Step 3: Cross multiply
    308,893.60x = 463,340.40 × 109,212.40
  4. Step 4: Simplify right side
    308,893.60x = 50,602,517,100.96
  5. Step 5: Solve for x
    x = 50,602,517,100.96/308,893.60
  6. Step 6: Final answer
    x = 163,818.60

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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.