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Finding the Fourth Proportional to 252,979.58, 349,119.04 and 138,264.60

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Solution

The fourth proportional to 252,979.58, 349,119.04 and 138,264.60 is: 190,809.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,979.58 : 349,119.04 = 138,264.60 : x
  2. Step 2: Convert to fraction form
    252,979.58/349,119.04 = 138,264.60/x
  3. Step 3: Cross multiply
    252,979.58x = 349,119.04 × 138,264.60
  4. Step 4: Simplify right side
    252,979.58x = 48,270,804,417.98
  5. Step 5: Solve for x
    x = 48,270,804,417.98/252,979.58
  6. Step 6: Final answer
    x = 190,809.09

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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.