Finding the Fourth Proportional to 457,364.68, 686,119.74 and 141,756.28
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Solution
The fourth proportional to 457,364.68, 686,119.74 and 141,756.28 is: 212,656.96
Step by Step Solution
- Step 1: Write the proportion equation
457,364.68 : 686,119.74 = 141,756.28 : x - Step 2: Convert to fraction form
457,364.68/686,119.74 = 141,756.28/x - Step 3: Cross multiply
457,364.68x = 686,119.74 × 141,756.28 - Step 4: Simplify right side
457,364.68x = 97,261,781,976.97 - Step 5: Solve for x
x = 97,261,781,976.97/457,364.68 - Step 6: Final answer
x = 212,656.96
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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.