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Finding the Fourth Proportional to 304,443.75, 420,133.19 and 168,487.07

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Solution

The fourth proportional to 304,443.75, 420,133.19 and 168,487.07 is: 232,512.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,443.75 : 420,133.19 = 168,487.07 : x
  2. Step 2: Convert to fraction form
    304,443.75/420,133.19 = 168,487.07/x
  3. Step 3: Cross multiply
    304,443.75x = 420,133.19 × 168,487.07
  4. Step 4: Simplify right side
    304,443.75x = 70,787,009,350.42
  5. Step 5: Solve for x
    x = 70,787,009,350.42/304,443.75
  6. Step 6: Final answer
    x = 232,512.61

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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.