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Finding the Fourth Proportional to 249,018.44, 343,644.73 and 135,840.38

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Solution

The fourth proportional to 249,018.44, 343,644.73 and 135,840.38 is: 187,459.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,018.44 : 343,644.73 = 135,840.38 : x
  2. Step 2: Convert to fraction form
    249,018.44/343,644.73 = 135,840.38/x
  3. Step 3: Cross multiply
    249,018.44x = 343,644.73 × 135,840.38
  4. Step 4: Simplify right side
    249,018.44x = 46,680,828,650.37
  5. Step 5: Solve for x
    x = 46,680,828,650.37/249,018.44
  6. Step 6: Final answer
    x = 187,459.33

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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.