Home / 239,863.37-331,011.34-137,908.76

Finding the Fourth Proportional to 239,863.37, 331,011.34 and 137,908.76

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Solution

The fourth proportional to 239,863.37, 331,011.34 and 137,908.76 is: 190,314.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,863.37 : 331,011.34 = 137,908.76 : x
  2. Step 2: Convert to fraction form
    239,863.37/331,011.34 = 137,908.76/x
  3. Step 3: Cross multiply
    239,863.37x = 331,011.34 × 137,908.76
  4. Step 4: Simplify right side
    239,863.37x = 45,649,361,445.51
  5. Step 5: Solve for x
    x = 45,649,361,445.51/239,863.37
  6. Step 6: Final answer
    x = 190,314.02

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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.