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Finding the Fourth Proportional to 368,871.96, 509,278.72 and 301,050.96

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Solution

The fourth proportional to 368,871.96, 509,278.72 and 301,050.96 is: 415,642.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,871.96 : 509,278.72 = 301,050.96 : x
  2. Step 2: Convert to fraction form
    368,871.96/509,278.72 = 301,050.96/x
  3. Step 3: Cross multiply
    368,871.96x = 509,278.72 × 301,050.96
  4. Step 4: Simplify right side
    368,871.96x = 153,318,847,563.57
  5. Step 5: Solve for x
    x = 153,318,847,563.57/368,871.96
  6. Step 6: Final answer
    x = 415,642.46

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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.