Finding the Fourth Proportional to 315,138.80, 434,875.56 and 171,897.68
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Solution
The fourth proportional to 315,138.80, 434,875.56 and 171,897.68 is: 237,210.08
Step by Step Solution
- Step 1: Write the proportion equation
315,138.80 : 434,875.56 = 171,897.68 : x - Step 2: Convert to fraction form
315,138.80/434,875.56 = 171,897.68/x - Step 3: Cross multiply
315,138.80x = 434,875.56 × 171,897.68 - Step 4: Simplify right side
315,138.80x = 74,754,099,852.70 - Step 5: Solve for x
x = 74,754,099,852.70/315,138.80 - Step 6: Final answer
x = 237,210.08
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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.