Home / 307,329.30-423,956.34-205,322.16

Finding the Fourth Proportional to 307,329.30, 423,956.34 and 205,322.16

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Solution

The fourth proportional to 307,329.30, 423,956.34 and 205,322.16 is: 283,238.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,329.30 : 423,956.34 = 205,322.16 : x
  2. Step 2: Convert to fraction form
    307,329.30/423,956.34 = 205,322.16/x
  3. Step 3: Cross multiply
    307,329.30x = 423,956.34 × 205,322.16
  4. Step 4: Simplify right side
    307,329.30x = 87,047,631,474.49
  5. Step 5: Solve for x
    x = 87,047,631,474.49/307,329.30
  6. Step 6: Final answer
    x = 283,238.96

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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.