Finding the Fourth Proportional to 338,837.08, 508,252.71 and 86,118.29
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Solution
The fourth proportional to 338,837.08, 508,252.71 and 86,118.29 is: 129,176.70
Step by Step Solution
- Step 1: Write the proportion equation
338,837.08 : 508,252.71 = 86,118.29 : x - Step 2: Convert to fraction form
338,837.08/508,252.71 = 86,118.29/x - Step 3: Cross multiply
338,837.08x = 508,252.71 × 86,118.29 - Step 4: Simplify right side
338,837.08x = 43,769,854,273.07 - Step 5: Solve for x
x = 43,769,854,273.07/338,837.08 - Step 6: Final answer
x = 129,176.70
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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.