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Finding the Fourth Proportional to 292,989, 439,222.86 and 105,958.92

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Solution

The fourth proportional to 292,989, 439,222.86 and 105,958.92 is: 158,844.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,989 : 439,222.86 = 105,958.92 : x
  2. Step 2: Convert to fraction form
    292,989/439,222.86 = 105,958.92/x
  3. Step 3: Cross multiply
    292,989x = 439,222.86 × 105,958.92
  4. Step 4: Simplify right side
    292,989x = 46,539,579,884.91
  5. Step 5: Solve for x
    x = 46,539,579,884.91/292,989
  6. Step 6: Final answer
    x = 158,844.12

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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.