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Finding the Fourth Proportional to 230,485.50, 318,089.43 and 129,902.94

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Solution

The fourth proportional to 230,485.50, 318,089.43 and 129,902.94 is: 179,277.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,485.50 : 318,089.43 = 129,902.94 : x
  2. Step 2: Convert to fraction form
    230,485.50/318,089.43 = 129,902.94/x
  3. Step 3: Cross multiply
    230,485.50x = 318,089.43 × 129,902.94
  4. Step 4: Simplify right side
    230,485.50x = 41,320,752,139.92
  5. Step 5: Solve for x
    x = 41,320,752,139.92/230,485.50
  6. Step 6: Final answer
    x = 179,277.01

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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.