Home / 212,388.40-293,036.70-131,819.32

Finding the Fourth Proportional to 212,388.40, 293,036.70 and 131,819.32

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Solution

The fourth proportional to 212,388.40, 293,036.70 and 131,819.32 is: 181,873.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,388.40 : 293,036.70 = 131,819.32 : x
  2. Step 2: Convert to fraction form
    212,388.40/293,036.70 = 131,819.32/x
  3. Step 3: Cross multiply
    212,388.40x = 293,036.70 × 131,819.32
  4. Step 4: Simplify right side
    212,388.40x = 38,627,898,529.04
  5. Step 5: Solve for x
    x = 38,627,898,529.04/212,388.40
  6. Step 6: Final answer
    x = 181,873.86

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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.