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Finding the Fourth Proportional to 248,871.94, 343,443.36 and 141,439.20

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Solution

The fourth proportional to 248,871.94, 343,443.36 and 141,439.20 is: 195,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,871.94 : 343,443.36 = 141,439.20 : x
  2. Step 2: Convert to fraction form
    248,871.94/343,443.36 = 141,439.20/x
  3. Step 3: Cross multiply
    248,871.94x = 343,443.36 × 141,439.20
  4. Step 4: Simplify right side
    248,871.94x = 48,576,354,083.71
  5. Step 5: Solve for x
    x = 48,576,354,083.71/248,871.94
  6. Step 6: Final answer
    x = 195,186.14

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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.