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Finding the Fourth Proportional to 307,609.04, 424,529.70 and 186,722.54

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Solution

The fourth proportional to 307,609.04, 424,529.70 and 186,722.54 is: 257,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,609.04 : 424,529.70 = 186,722.54 : x
  2. Step 2: Convert to fraction form
    307,609.04/424,529.70 = 186,722.54/x
  3. Step 3: Cross multiply
    307,609.04x = 424,529.70 × 186,722.54
  4. Step 4: Simplify right side
    307,609.04x = 79,269,263,889.44
  5. Step 5: Solve for x
    x = 79,269,263,889.44/307,609.04
  6. Step 6: Final answer
    x = 257,694.85

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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.