Finding the Fourth Proportional to 197,539.03, 272,605.51 and 115,916.09
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Solution
The fourth proportional to 197,539.03, 272,605.51 and 115,916.09 is: 159,965.17
Step by Step Solution
- Step 1: Write the proportion equation
197,539.03 : 272,605.51 = 115,916.09 : x - Step 2: Convert to fraction form
197,539.03/272,605.51 = 115,916.09/x - Step 3: Cross multiply
197,539.03x = 272,605.51 × 115,916.09 - Step 4: Simplify right side
197,539.03x = 31,599,364,831.66 - Step 5: Solve for x
x = 31,599,364,831.66/197,539.03 - Step 6: Final answer
x = 159,965.17
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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.