Finding the Fourth Proportional to 247,431.68, 370,816.64 and 128,854.08
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Solution
The fourth proportional to 247,431.68, 370,816.64 and 128,854.08 is: 193,108.81
Step by Step Solution
- Step 1: Write the proportion equation
247,431.68 : 370,816.64 = 128,854.08 : x - Step 2: Convert to fraction form
247,431.68/370,816.64 = 128,854.08/x - Step 3: Cross multiply
247,431.68x = 370,816.64 × 128,854.08 - Step 4: Simplify right side
247,431.68x = 47,781,236,995.89 - Step 5: Solve for x
x = 47,781,236,995.89/247,431.68 - Step 6: Final answer
x = 193,108.81
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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.