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Finding the Fourth Proportional to 300,784.78, 415,082.94 and 179,931.16

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Solution

The fourth proportional to 300,784.78, 415,082.94 and 179,931.16 is: 248,304.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,784.78 : 415,082.94 = 179,931.16 : x
  2. Step 2: Convert to fraction form
    300,784.78/415,082.94 = 179,931.16/x
  3. Step 3: Cross multiply
    300,784.78x = 415,082.94 × 179,931.16
  4. Step 4: Simplify right side
    300,784.78x = 74,686,354,890.41
  5. Step 5: Solve for x
    x = 74,686,354,890.41/300,784.78
  6. Step 6: Final answer
    x = 248,304.97

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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.