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Finding the Fourth Proportional to 245,866, 368,886.48 and 121,294.48

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Solution

The fourth proportional to 245,866, 368,886.48 and 121,294.48 is: 181,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,866 : 368,886.48 = 121,294.48 : x
  2. Step 2: Convert to fraction form
    245,866/368,886.48 = 121,294.48/x
  3. Step 3: Cross multiply
    245,866x = 368,886.48 × 121,294.48
  4. Step 4: Simplify right side
    245,866x = 44,743,893,770.63
  5. Step 5: Solve for x
    x = 44,743,893,770.63/245,866
  6. Step 6: Final answer
    x = 181,984.88

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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.