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Finding the Fourth Proportional to 252,048.88, 347,828.52 and 138,871.63

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Solution

The fourth proportional to 252,048.88, 347,828.52 and 138,871.63 is: 191,643.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,048.88 : 347,828.52 = 138,871.63 : x
  2. Step 2: Convert to fraction form
    252,048.88/347,828.52 = 138,871.63/x
  3. Step 3: Cross multiply
    252,048.88x = 347,828.52 × 138,871.63
  4. Step 4: Simplify right side
    252,048.88x = 48,303,513,532.89
  5. Step 5: Solve for x
    x = 48,303,513,532.89/252,048.88
  6. Step 6: Final answer
    x = 191,643.44

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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.