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Finding the Fourth Proportional to 304,439.03, 420,115.53 and 168,478.71

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Solution

The fourth proportional to 304,439.03, 420,115.53 and 168,478.71 is: 232,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,439.03 : 420,115.53 = 168,478.71 : x
  2. Step 2: Convert to fraction form
    304,439.03/420,115.53 = 168,478.71/x
  3. Step 3: Cross multiply
    304,439.03x = 420,115.53 × 168,478.71
  4. Step 4: Simplify right side
    304,439.03x = 70,780,522,545.37
  5. Step 5: Solve for x
    x = 70,780,522,545.37/304,439.03
  6. Step 6: Final answer
    x = 232,494.90

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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.