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Finding the Fourth Proportional to 368,847.79, 509,004.94 and 207,704.77

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Solution

The fourth proportional to 368,847.79, 509,004.94 and 207,704.77 is: 286,629.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,847.79 : 509,004.94 = 207,704.77 : x
  2. Step 2: Convert to fraction form
    368,847.79/509,004.94 = 207,704.77/x
  3. Step 3: Cross multiply
    368,847.79x = 509,004.94 × 207,704.77
  4. Step 4: Simplify right side
    368,847.79x = 105,722,750,408.02
  5. Step 5: Solve for x
    x = 105,722,750,408.02/368,847.79
  6. Step 6: Final answer
    x = 286,629.76

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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.