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Finding the Fourth Proportional to 300,820.64, 450,927.32 and 188,579.70

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Solution

The fourth proportional to 300,820.64, 450,927.32 and 188,579.70 is: 282,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,820.64 : 450,927.32 = 188,579.70 : x
  2. Step 2: Convert to fraction form
    300,820.64/450,927.32 = 188,579.70/x
  3. Step 3: Cross multiply
    300,820.64x = 450,927.32 × 188,579.70
  4. Step 4: Simplify right side
    300,820.64x = 85,035,737,784.51
  5. Step 5: Solve for x
    x = 85,035,737,784.51/300,820.64
  6. Step 6: Final answer
    x = 282,679.20

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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.