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Finding the Fourth Proportional to 300,009.81, 450,015.14 and 122,516.81

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Solution

The fourth proportional to 300,009.81, 450,015.14 and 122,516.81 is: 183,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,009.81 : 450,015.14 = 122,516.81 : x
  2. Step 2: Convert to fraction form
    300,009.81/450,015.14 = 122,516.81/x
  3. Step 3: Cross multiply
    300,009.81x = 450,015.14 × 122,516.81
  4. Step 4: Simplify right side
    300,009.81x = 55,134,421,679.61
  5. Step 5: Solve for x
    x = 55,134,421,679.61/300,009.81
  6. Step 6: Final answer
    x = 183,775.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.