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Finding the Fourth Proportional to 300,014.14, 450,021.65 and 122,521.16

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Solution

The fourth proportional to 300,014.14, 450,021.65 and 122,521.16 is: 183,781.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,014.14 : 450,021.65 = 122,521.16 : x
  2. Step 2: Convert to fraction form
    300,014.14/450,021.65 = 122,521.16/x
  3. Step 3: Cross multiply
    300,014.14x = 450,021.65 × 122,521.16
  4. Step 4: Simplify right side
    300,014.14x = 55,137,174,583.11
  5. Step 5: Solve for x
    x = 55,137,174,583.11/300,014.14
  6. Step 6: Final answer
    x = 183,781.92

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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.