Finding the Fourth Proportional to 157,957.60, 236,475.60 and 141,368.80
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Solution
The fourth proportional to 157,957.60, 236,475.60 and 141,368.80 is: 211,640.79
Step by Step Solution
- Step 1: Write the proportion equation
157,957.60 : 236,475.60 = 141,368.80 : x - Step 2: Convert to fraction form
157,957.60/236,475.60 = 141,368.80/x - Step 3: Cross multiply
157,957.60x = 236,475.60 × 141,368.80 - Step 4: Simplify right side
157,957.60x = 33,430,271,801.28 - Step 5: Solve for x
x = 33,430,271,801.28/157,957.60 - Step 6: Final answer
x = 211,640.79
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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.