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Finding the Fourth Proportional to 307,033.64, 423,594 and 186,087.68

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Solution

The fourth proportional to 307,033.64, 423,594 and 186,087.68 is: 256,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,033.64 : 423,594 = 186,087.68 : x
  2. Step 2: Convert to fraction form
    307,033.64/423,594 = 186,087.68/x
  3. Step 3: Cross multiply
    307,033.64x = 423,594 × 186,087.68
  4. Step 4: Simplify right side
    307,033.64x = 78,825,624,721.92
  5. Step 5: Solve for x
    x = 78,825,624,721.92/307,033.64
  6. Step 6: Final answer
    x = 256,732.86

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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.