Finding the Fourth Proportional to 428,312.20, 591,070.26 and 237,337.96
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Solution
The fourth proportional to 428,312.20, 591,070.26 and 237,337.96 is: 327,526.07
Step by Step Solution
- Step 1: Write the proportion equation
428,312.20 : 591,070.26 = 237,337.96 : x - Step 2: Convert to fraction form
428,312.20/591,070.26 = 237,337.96/x - Step 3: Cross multiply
428,312.20x = 591,070.26 × 237,337.96 - Step 4: Simplify right side
428,312.20x = 140,283,409,725.07 - Step 5: Solve for x
x = 140,283,409,725.07/428,312.20 - Step 6: Final answer
x = 327,526.07
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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.