Finding the Fourth Proportional to 272,447.14, 375,971.16 and 157,730.68
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Solution
The fourth proportional to 272,447.14, 375,971.16 and 157,730.68 is: 217,664.93
Step by Step Solution
- Step 1: Write the proportion equation
272,447.14 : 375,971.16 = 157,730.68 : x - Step 2: Convert to fraction form
272,447.14/375,971.16 = 157,730.68/x - Step 3: Cross multiply
272,447.14x = 375,971.16 × 157,730.68 - Step 4: Simplify right side
272,447.14x = 59,302,186,727.19 - Step 5: Solve for x
x = 59,302,186,727.19/272,447.14 - Step 6: Final answer
x = 217,664.93
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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.