Finding the Fourth Proportional to 284,170.19, 392,126.93 and 156,837.58
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Solution
The fourth proportional to 284,170.19, 392,126.93 and 156,837.58 is: 216,420.43
Step by Step Solution
- Step 1: Write the proportion equation
284,170.19 : 392,126.93 = 156,837.58 : x - Step 2: Convert to fraction form
284,170.19/392,126.93 = 156,837.58/x - Step 3: Cross multiply
284,170.19x = 392,126.93 × 156,837.58 - Step 4: Simplify right side
284,170.19x = 61,500,236,009.21 - Step 5: Solve for x
x = 61,500,236,009.21/284,170.19 - Step 6: Final answer
x = 216,420.43
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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.