Finding the Fourth Proportional to 235,918.96, 354,030.68 and 86,146.71
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Solution
The fourth proportional to 235,918.96, 354,030.68 and 86,146.71 is: 129,275.65
Step by Step Solution
- Step 1: Write the proportion equation
235,918.96 : 354,030.68 = 86,146.71 : x - Step 2: Convert to fraction form
235,918.96/354,030.68 = 86,146.71/x - Step 3: Cross multiply
235,918.96x = 354,030.68 × 86,146.71 - Step 4: Simplify right side
235,918.96x = 30,498,577,208.81 - Step 5: Solve for x
x = 30,498,577,208.81/235,918.96 - Step 6: Final answer
x = 129,275.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.