Finding the Fourth Proportional to 297,009.84, 445,514.64 and 86,647.68
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Solution
The fourth proportional to 297,009.84, 445,514.64 and 86,647.68 is: 129,971.48
Step by Step Solution
- Step 1: Write the proportion equation
297,009.84 : 445,514.64 = 86,647.68 : x - Step 2: Convert to fraction form
297,009.84/445,514.64 = 86,647.68/x - Step 3: Cross multiply
297,009.84x = 445,514.64 × 86,647.68 - Step 4: Simplify right side
297,009.84x = 38,602,809,962.04 - Step 5: Solve for x
x = 38,602,809,962.04/297,009.84 - Step 6: Final answer
x = 129,971.48
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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.