Finding the Fourth Proportional to 284,641.08, 392,781.06 and 157,316.68
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Solution
The fourth proportional to 284,641.08, 392,781.06 and 157,316.68 is: 217,083.96
Step by Step Solution
- Step 1: Write the proportion equation
284,641.08 : 392,781.06 = 157,316.68 : x - Step 2: Convert to fraction form
284,641.08/392,781.06 = 157,316.68/x - Step 3: Cross multiply
284,641.08x = 392,781.06 × 157,316.68 - Step 4: Simplify right side
284,641.08x = 61,791,012,326.08 - Step 5: Solve for x
x = 61,791,012,326.08/284,641.08 - Step 6: Final answer
x = 217,083.96
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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.