Finding the Fourth Proportional to 310,449.26, 428,420.38 and 176,313.26
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Solution
The fourth proportional to 310,449.26, 428,420.38 and 176,313.26 is: 243,312.53
Step by Step Solution
- Step 1: Write the proportion equation
310,449.26 : 428,420.38 = 176,313.26 : x - Step 2: Convert to fraction form
310,449.26/428,420.38 = 176,313.26/x - Step 3: Cross multiply
310,449.26x = 428,420.38 × 176,313.26 - Step 4: Simplify right side
310,449.26x = 75,536,193,848.24 - Step 5: Solve for x
x = 75,536,193,848.24/310,449.26 - Step 6: Final answer
x = 243,312.53
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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.