Finding the Fourth Proportional to 201,547.06, 277,992.68 and 136,978.39
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Solution
The fourth proportional to 201,547.06, 277,992.68 and 136,978.39 is: 188,933.49
Step by Step Solution
- Step 1: Write the proportion equation
201,547.06 : 277,992.68 = 136,978.39 : x - Step 2: Convert to fraction form
201,547.06/277,992.68 = 136,978.39/x - Step 3: Cross multiply
201,547.06x = 277,992.68 × 136,978.39 - Step 4: Simplify right side
201,547.06x = 38,078,989,400.78 - Step 5: Solve for x
x = 38,078,989,400.78/201,547.06 - Step 6: Final answer
x = 188,933.49
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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.