Finding the Fourth Proportional to 487,676.76, 731,539.62 and 155,278.68
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Solution
The fourth proportional to 487,676.76, 731,539.62 and 155,278.68 is: 232,925.81
Step by Step Solution
- Step 1: Write the proportion equation
487,676.76 : 731,539.62 = 155,278.68 : x - Step 2: Convert to fraction form
487,676.76/731,539.62 = 155,278.68/x - Step 3: Cross multiply
487,676.76x = 731,539.62 × 155,278.68 - Step 4: Simplify right side
487,676.76x = 113,592,506,561.30 - Step 5: Solve for x
x = 113,592,506,561.30/487,676.76 - Step 6: Final answer
x = 232,925.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.