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Finding the Fourth Proportional to 239,784.60, 330,699.60 and 144,273.45

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Solution

The fourth proportional to 239,784.60, 330,699.60 and 144,273.45 is: 198,975.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,784.60 : 330,699.60 = 144,273.45 : x
  2. Step 2: Convert to fraction form
    239,784.60/330,699.60 = 144,273.45/x
  3. Step 3: Cross multiply
    239,784.60x = 330,699.60 × 144,273.45
  4. Step 4: Simplify right side
    239,784.60x = 47,711,172,205.62
  5. Step 5: Solve for x
    x = 47,711,172,205.62/239,784.60
  6. Step 6: Final answer
    x = 198,975.13

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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.