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Finding the Fourth Proportional to 250,056.36, 345,078.36 and 136,886.40

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Solution

The fourth proportional to 250,056.36, 345,078.36 and 136,886.40 is: 188,903.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,056.36 : 345,078.36 = 136,886.40 : x
  2. Step 2: Convert to fraction form
    250,056.36/345,078.36 = 136,886.40/x
  3. Step 3: Cross multiply
    250,056.36x = 345,078.36 × 136,886.40
  4. Step 4: Simplify right side
    250,056.36x = 47,236,534,418.30
  5. Step 5: Solve for x
    x = 47,236,534,418.30/250,056.36
  6. Step 6: Final answer
    x = 188,903.55

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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.