Finding the Fourth Proportional to 165,325.44, 247,994.64 and 86,386.08
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Solution
The fourth proportional to 165,325.44, 247,994.64 and 86,386.08 is: 129,582.51
Step by Step Solution
- Step 1: Write the proportion equation
165,325.44 : 247,994.64 = 86,386.08 : x - Step 2: Convert to fraction form
165,325.44/247,994.64 = 86,386.08/x - Step 3: Cross multiply
165,325.44x = 247,994.64 × 86,386.08 - Step 4: Simplify right side
165,325.44x = 21,423,284,810.61 - Step 5: Solve for x
x = 21,423,284,810.61/165,325.44 - Step 6: Final answer
x = 129,582.51
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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.