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Finding the Fourth Proportional to 248,612.88, 343,085.73 and 135,435.63

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Solution

The fourth proportional to 248,612.88, 343,085.73 and 135,435.63 is: 186,901.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,612.88 : 343,085.73 = 135,435.63 : x
  2. Step 2: Convert to fraction form
    248,612.88/343,085.73 = 135,435.63/x
  3. Step 3: Cross multiply
    248,612.88x = 343,085.73 × 135,435.63
  4. Step 4: Simplify right side
    248,612.88x = 46,466,031,986.56
  5. Step 5: Solve for x
    x = 46,466,031,986.56/248,612.88
  6. Step 6: Final answer
    x = 186,901.15

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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.