Home / 250,265.72-345,366.84-137,090.36

Finding the Fourth Proportional to 250,265.72, 345,366.84 and 137,090.36

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Solution

The fourth proportional to 250,265.72, 345,366.84 and 137,090.36 is: 189,184.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,265.72 : 345,366.84 = 137,090.36 : x
  2. Step 2: Convert to fraction form
    250,265.72/345,366.84 = 137,090.36/x
  3. Step 3: Cross multiply
    250,265.72x = 345,366.84 × 137,090.36
  4. Step 4: Simplify right side
    250,265.72x = 47,346,464,427.66
  5. Step 5: Solve for x
    x = 47,346,464,427.66/250,265.72
  6. Step 6: Final answer
    x = 189,184.78

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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.