Finding the Fourth Proportional to 155,286.08, 214,289.82 and 87,305.93
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Solution
The fourth proportional to 155,286.08, 214,289.82 and 87,305.93 is: 120,479.39
Step by Step Solution
- Step 1: Write the proportion equation
155,286.08 : 214,289.82 = 87,305.93 : x - Step 2: Convert to fraction form
155,286.08/214,289.82 = 87,305.93/x - Step 3: Cross multiply
155,286.08x = 214,289.82 × 87,305.93 - Step 4: Simplify right side
155,286.08x = 18,708,772,024.63 - Step 5: Solve for x
x = 18,708,772,024.63/155,286.08 - Step 6: Final answer
x = 120,479.39
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.