Finding the Fourth Proportional to 188,979.58, 260,781.98 and 117,358.07
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Solution
The fourth proportional to 188,979.58, 260,781.98 and 117,358.07 is: 161,948.02
Step by Step Solution
- Step 1: Write the proportion equation
188,979.58 : 260,781.98 = 117,358.07 : x - Step 2: Convert to fraction form
188,979.58/260,781.98 = 117,358.07/x - Step 3: Cross multiply
188,979.58x = 260,781.98 × 117,358.07 - Step 4: Simplify right side
188,979.58x = 30,604,868,633.02 - Step 5: Solve for x
x = 30,604,868,633.02/188,979.58 - Step 6: Final answer
x = 161,948.02
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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.