Finding the Fourth Proportional to 284,699.68, 392,881.28 and 157,372.48
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Solution
The fourth proportional to 284,699.68, 392,881.28 and 157,372.48 is: 217,171.66
Step by Step Solution
- Step 1: Write the proportion equation
284,699.68 : 392,881.28 = 157,372.48 : x - Step 2: Convert to fraction form
284,699.68/392,881.28 = 157,372.48/x - Step 3: Cross multiply
284,699.68x = 392,881.28 × 157,372.48 - Step 4: Simplify right side
284,699.68x = 61,828,701,379.17 - Step 5: Solve for x
x = 61,828,701,379.17/284,699.68 - Step 6: Final answer
x = 217,171.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.