Home / 307,004.40-423,439.74-204,980.85

Finding the Fourth Proportional to 307,004.40, 423,439.74 and 204,980.85

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Solution

The fourth proportional to 307,004.40, 423,439.74 and 204,980.85 is: 282,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,004.40 : 423,439.74 = 204,980.85 : x
  2. Step 2: Convert to fraction form
    307,004.40/423,439.74 = 204,980.85/x
  3. Step 3: Cross multiply
    307,004.40x = 423,439.74 × 204,980.85
  4. Step 4: Simplify right side
    307,004.40x = 86,797,037,828.98
  5. Step 5: Solve for x
    x = 86,797,037,828.98/307,004.40
  6. Step 6: Final answer
    x = 282,722.46

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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.