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Finding the Fourth Proportional to 368,646.45, 508,610.43 and 300,546.35

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Solution

The fourth proportional to 368,646.45, 508,610.43 and 300,546.35 is: 414,654.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,646.45 : 508,610.43 = 300,546.35 : x
  2. Step 2: Convert to fraction form
    368,646.45/508,610.43 = 300,546.35/x
  3. Step 3: Cross multiply
    368,646.45x = 508,610.43 × 300,546.35
  4. Step 4: Simplify right side
    368,646.45x = 152,861,005,765.38
  5. Step 5: Solve for x
    x = 152,861,005,765.38/368,646.45
  6. Step 6: Final answer
    x = 414,654.76

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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.