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Finding the Fourth Proportional to 300,722.68, 414,664.83 and 191,654.40

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Solution

The fourth proportional to 300,722.68, 414,664.83 and 191,654.40 is: 264,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,722.68 : 414,664.83 = 191,654.40 : x
  2. Step 2: Convert to fraction form
    300,722.68/414,664.83 = 191,654.40/x
  3. Step 3: Cross multiply
    300,722.68x = 414,664.83 × 191,654.40
  4. Step 4: Simplify right side
    300,722.68x = 79,472,341,019.26
  5. Step 5: Solve for x
    x = 79,472,341,019.26/300,722.68
  6. Step 6: Final answer
    x = 264,271.20

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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.