Home / 470,621.76-705,932.16-190,138.88

Finding the Fourth Proportional to 470,621.76, 705,932.16 and 190,138.88

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Solution

The fourth proportional to 470,621.76, 705,932.16 and 190,138.88 is: 285,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,621.76 : 705,932.16 = 190,138.88 : x
  2. Step 2: Convert to fraction form
    470,621.76/705,932.16 = 190,138.88/x
  3. Step 3: Cross multiply
    470,621.76x = 705,932.16 × 190,138.88
  4. Step 4: Simplify right side
    470,621.76x = 134,225,150,258.38
  5. Step 5: Solve for x
    x = 134,225,150,258.38/470,621.76
  6. Step 6: Final answer
    x = 285,208.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.