Finding the Fourth Proportional to 188,809.36, 260,556.99 and 103,925.81
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Solution
The fourth proportional to 188,809.36, 260,556.99 and 103,925.81 is: 143,417.66
Step by Step Solution
- Step 1: Write the proportion equation
188,809.36 : 260,556.99 = 103,925.81 : x - Step 2: Convert to fraction form
188,809.36/260,556.99 = 103,925.81/x - Step 3: Cross multiply
188,809.36x = 260,556.99 × 103,925.81 - Step 4: Simplify right side
188,809.36x = 27,078,596,498.58 - Step 5: Solve for x
x = 27,078,596,498.58/188,809.36 - Step 6: Final answer
x = 143,417.66
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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.