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Finding the Fourth Proportional to 248,843.68, 343,401.36 and 135,667.36

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Solution

The fourth proportional to 248,843.68, 343,401.36 and 135,667.36 is: 187,219.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,843.68 : 343,401.36 = 135,667.36 : x
  2. Step 2: Convert to fraction form
    248,843.68/343,401.36 = 135,667.36/x
  3. Step 3: Cross multiply
    248,843.68x = 343,401.36 × 135,667.36
  4. Step 4: Simplify right side
    248,843.68x = 46,588,355,931.61
  5. Step 5: Solve for x
    x = 46,588,355,931.61/248,843.68
  6. Step 6: Final answer
    x = 187,219.37

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1.5x scale

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.