Finding the Fourth Proportional to 188,968.19, 260,776.80 and 104,085.05
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Solution
The fourth proportional to 188,968.19, 260,776.80 and 104,085.05 is: 143,637.75
Step by Step Solution
- Step 1: Write the proportion equation
188,968.19 : 260,776.80 = 104,085.05 : x - Step 2: Convert to fraction form
188,968.19/260,776.80 = 104,085.05/x - Step 3: Cross multiply
188,968.19x = 260,776.80 × 104,085.05 - Step 4: Simplify right side
188,968.19x = 27,142,964,962.96 - Step 5: Solve for x
x = 27,142,964,962.96/188,968.19 - Step 6: Final answer
x = 143,637.75
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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.