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Finding the Fourth Proportional to 300,003, 414,012.78 and 165,875.64

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Solution

The fourth proportional to 300,003, 414,012.78 and 165,875.64 is: 228,913.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,003 : 414,012.78 = 165,875.64 : x
  2. Step 2: Convert to fraction form
    300,003/414,012.78 = 165,875.64/x
  3. Step 3: Cross multiply
    300,003x = 414,012.78 × 165,875.64
  4. Step 4: Simplify right side
    300,003x = 68,674,634,850.68
  5. Step 5: Solve for x
    x = 68,674,634,850.68/300,003
  6. Step 6: Final answer
    x = 228,913.16

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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.