Home / 276,112.96-380,880.21-165,703.39

Finding the Fourth Proportional to 276,112.96, 380,880.21 and 165,703.39

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Solution

The fourth proportional to 276,112.96, 380,880.21 and 165,703.39 is: 228,577.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,112.96 : 380,880.21 = 165,703.39 : x
  2. Step 2: Convert to fraction form
    276,112.96/380,880.21 = 165,703.39/x
  3. Step 3: Cross multiply
    276,112.96x = 380,880.21 × 165,703.39
  4. Step 4: Simplify right side
    276,112.96x = 63,113,141,980.91
  5. Step 5: Solve for x
    x = 63,113,141,980.91/276,112.96
  6. Step 6: Final answer
    x = 228,577.25

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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.