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Finding the Fourth Proportional to 307,635.58, 424,366.52 and 180,286.57

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Solution

The fourth proportional to 307,635.58, 424,366.52 and 180,286.57 is: 248,695.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,635.58 : 424,366.52 = 180,286.57 : x
  2. Step 2: Convert to fraction form
    307,635.58/424,366.52 = 180,286.57/x
  3. Step 3: Cross multiply
    307,635.58x = 424,366.52 × 180,286.57
  4. Step 4: Simplify right side
    307,635.58x = 76,507,584,313.64
  5. Step 5: Solve for x
    x = 76,507,584,313.64/307,635.58
  6. Step 6: Final answer
    x = 248,695.50

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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.