Finding the Fourth Proportional to 201,987.96, 278,731.57 and 115,927.08
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Solution
The fourth proportional to 201,987.96, 278,731.57 and 115,927.08 is: 159,972.59
Step by Step Solution
- Step 1: Write the proportion equation
201,987.96 : 278,731.57 = 115,927.08 : x - Step 2: Convert to fraction form
201,987.96/278,731.57 = 115,927.08/x - Step 3: Cross multiply
201,987.96x = 278,731.57 × 115,927.08 - Step 4: Simplify right side
201,987.96x = 32,312,537,013.92 - Step 5: Solve for x
x = 32,312,537,013.92/201,987.96 - Step 6: Final answer
x = 159,972.59
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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.