Finding the Fourth Proportional to 315,118.60, 472,283.70 and 157,391.08
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Solution
The fourth proportional to 315,118.60, 472,283.70 and 157,391.08 is: 235,889.73
Step by Step Solution
- Step 1: Write the proportion equation
315,118.60 : 472,283.70 = 157,391.08 : x - Step 2: Convert to fraction form
315,118.60/472,283.70 = 157,391.08/x - Step 3: Cross multiply
315,118.60x = 472,283.70 × 157,391.08 - Step 4: Simplify right side
315,118.60x = 74,333,241,609.40 - Step 5: Solve for x
x = 74,333,241,609.40/315,118.60 - Step 6: Final answer
x = 235,889.73
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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.