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Finding the Fourth Proportional to 304,451.85, 420,134.94 and 168,491.46

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Solution

The fourth proportional to 304,451.85, 420,134.94 and 168,491.46 is: 232,513.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,451.85 : 420,134.94 = 168,491.46 : x
  2. Step 2: Convert to fraction form
    304,451.85/420,134.94 = 168,491.46/x
  3. Step 3: Cross multiply
    304,451.85x = 420,134.94 × 168,491.46
  4. Step 4: Simplify right side
    304,451.85x = 70,789,149,437.61
  5. Step 5: Solve for x
    x = 70,789,149,437.61/304,451.85
  6. Step 6: Final answer
    x = 232,513.45

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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.