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Finding the Fourth Proportional to 279,093.48, 385,159.14 and 159,884.52

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Solution

The fourth proportional to 279,093.48, 385,159.14 and 159,884.52 is: 220,646.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,093.48 : 385,159.14 = 159,884.52 : x
  2. Step 2: Convert to fraction form
    279,093.48/385,159.14 = 159,884.52/x
  3. Step 3: Cross multiply
    279,093.48x = 385,159.14 × 159,884.52
  4. Step 4: Simplify right side
    279,093.48x = 61,580,984,222.51
  5. Step 5: Solve for x
    x = 61,580,984,222.51/279,093.48
  6. Step 6: Final answer
    x = 220,646.45

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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.