Home / 307,165.34-423,909.44-186,311.72

Finding the Fourth Proportional to 307,165.34, 423,909.44 and 186,311.72

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Solution

The fourth proportional to 307,165.34, 423,909.44 and 186,311.72 is: 257,123.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,165.34 : 423,909.44 = 186,311.72 : x
  2. Step 2: Convert to fraction form
    307,165.34/423,909.44 = 186,311.72/x
  3. Step 3: Cross multiply
    307,165.34x = 423,909.44 × 186,311.72
  4. Step 4: Simplify right side
    307,165.34x = 78,979,293,839.53
  5. Step 5: Solve for x
    x = 78,979,293,839.53/307,165.34
  6. Step 6: Final answer
    x = 257,123.07

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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.