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Finding the Fourth Proportional to 248,901.77, 343,483.80 and 135,724.52

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Solution

The fourth proportional to 248,901.77, 343,483.80 and 135,724.52 is: 187,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,901.77 : 343,483.80 = 135,724.52 : x
  2. Step 2: Convert to fraction form
    248,901.77/343,483.80 = 135,724.52/x
  3. Step 3: Cross multiply
    248,901.77x = 343,483.80 × 135,724.52
  4. Step 4: Simplify right side
    248,901.77x = 46,619,173,024.07
  5. Step 5: Solve for x
    x = 46,619,173,024.07/248,901.77
  6. Step 6: Final answer
    x = 187,299.49

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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.