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Finding the Fourth Proportional to 304,624.76, 420,382.56 and 170,488.76

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Solution

The fourth proportional to 304,624.76, 420,382.56 and 170,488.76 is: 235,274.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,624.76 : 420,382.56 = 170,488.76 : x
  2. Step 2: Convert to fraction form
    304,624.76/420,382.56 = 170,488.76/x
  3. Step 3: Cross multiply
    304,624.76x = 420,382.56 × 170,488.76
  4. Step 4: Simplify right side
    304,624.76x = 71,670,501,380.03
  5. Step 5: Solve for x
    x = 71,670,501,380.03/304,624.76
  6. Step 6: Final answer
    x = 235,274.71

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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.