Finding the Fourth Proportional to 247,781.12, 371,685.74 and 70,274.07
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Solution
The fourth proportional to 247,781.12, 371,685.74 and 70,274.07 is: 105,415.09
Step by Step Solution
- Step 1: Write the proportion equation
247,781.12 : 371,685.74 = 70,274.07 : x - Step 2: Convert to fraction form
247,781.12/371,685.74 = 70,274.07/x - Step 3: Cross multiply
247,781.12x = 371,685.74 × 70,274.07 - Step 4: Simplify right side
247,781.12x = 26,119,869,359.39 - Step 5: Solve for x
x = 26,119,869,359.39/247,781.12 - Step 6: Final answer
x = 105,415.09
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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.