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Finding the Fourth Proportional to 304,465.57, 420,163.26 and 168,508.87

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Solution

The fourth proportional to 304,465.57, 420,163.26 and 168,508.87 is: 232,542.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,465.57 : 420,163.26 = 168,508.87 : x
  2. Step 2: Convert to fraction form
    304,465.57/420,163.26 = 168,508.87/x
  3. Step 3: Cross multiply
    304,465.57x = 420,163.26 × 168,508.87
  4. Step 4: Simplify right side
    304,465.57x = 70,801,236,158.12
  5. Step 5: Solve for x
    x = 70,801,236,158.12/304,465.57
  6. Step 6: Final answer
    x = 232,542.67

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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.