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Finding the Fourth Proportional to 304,399.44, 420,071.72 and 168,439.10

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Solution

The fourth proportional to 304,399.44, 420,071.72 and 168,439.10 is: 232,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,399.44 : 420,071.72 = 168,439.10 : x
  2. Step 2: Convert to fraction form
    304,399.44/420,071.72 = 168,439.10/x
  3. Step 3: Cross multiply
    304,399.44x = 420,071.72 × 168,439.10
  4. Step 4: Simplify right side
    304,399.44x = 70,756,499,509.70
  5. Step 5: Solve for x
    x = 70,756,499,509.70/304,399.44
  6. Step 6: Final answer
    x = 232,446.22

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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.