Home / 470,621.70-705,932.55-155,037.60

Finding the Fourth Proportional to 470,621.70, 705,932.55 and 155,037.60

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Solution

The fourth proportional to 470,621.70, 705,932.55 and 155,037.60 is: 232,556.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,621.70 : 705,932.55 = 155,037.60 : x
  2. Step 2: Convert to fraction form
    470,621.70/705,932.55 = 155,037.60/x
  3. Step 3: Cross multiply
    470,621.70x = 705,932.55 × 155,037.60
  4. Step 4: Simplify right side
    470,621.70x = 109,446,088,313.88
  5. Step 5: Solve for x
    x = 109,446,088,313.88/470,621.70
  6. Step 6: Final answer
    x = 232,556.40

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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.