Finding the Fourth Proportional to 318,655.36, 478,278.69 and 160,994.53
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Solution
The fourth proportional to 318,655.36, 478,278.69 and 160,994.53 is: 241,641.17
Step by Step Solution
- Step 1: Write the proportion equation
318,655.36 : 478,278.69 = 160,994.53 : x - Step 2: Convert to fraction form
318,655.36/478,278.69 = 160,994.53/x - Step 3: Cross multiply
318,655.36x = 478,278.69 × 160,994.53 - Step 4: Simplify right side
318,655.36x = 77,000,252,905.57 - Step 5: Solve for x
x = 77,000,252,905.57/318,655.36 - Step 6: Final answer
x = 241,641.17
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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.