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Finding the Fourth Proportional to 259,230.80, 388,889.40 and 101,464.40

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Solution

The fourth proportional to 259,230.80, 388,889.40 and 101,464.40 is: 152,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,230.80 : 388,889.40 = 101,464.40 : x
  2. Step 2: Convert to fraction form
    259,230.80/388,889.40 = 101,464.40/x
  3. Step 3: Cross multiply
    259,230.80x = 388,889.40 × 101,464.40
  4. Step 4: Simplify right side
    259,230.80x = 39,458,429,637.36
  5. Step 5: Solve for x
    x = 39,458,429,637.36/259,230.80
  6. Step 6: Final answer
    x = 152,213.51

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1.5x scale

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.