Finding the Fourth Proportional to 226,389.96, 312,349.93 and 135,712.82
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Solution
The fourth proportional to 226,389.96, 312,349.93 and 135,712.82 is: 187,242.80
Step by Step Solution
- Step 1: Write the proportion equation
226,389.96 : 312,349.93 = 135,712.82 : x - Step 2: Convert to fraction form
226,389.96/312,349.93 = 135,712.82/x - Step 3: Cross multiply
226,389.96x = 312,349.93 × 135,712.82 - Step 4: Simplify right side
226,389.96x = 42,389,890,268.70 - Step 5: Solve for x
x = 42,389,890,268.70/226,389.96 - Step 6: Final answer
x = 187,242.80
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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.