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Finding the Fourth Proportional to 260,069.99, 389,994.21 and 102,187.69

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Solution

The fourth proportional to 260,069.99, 389,994.21 and 102,187.69 is: 153,238.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,069.99 : 389,994.21 = 102,187.69 : x
  2. Step 2: Convert to fraction form
    260,069.99/389,994.21 = 102,187.69/x
  3. Step 3: Cross multiply
    260,069.99x = 389,994.21 × 102,187.69
  4. Step 4: Simplify right side
    260,069.99x = 39,852,606,458.29
  5. Step 5: Solve for x
    x = 39,852,606,458.29/260,069.99
  6. Step 6: Final answer
    x = 153,238.01

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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.