Finding the Fourth Proportional to 153,903.40, 230,855.10 and 136,277.80
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Solution
The fourth proportional to 153,903.40, 230,855.10 and 136,277.80 is: 204,416.70
Step by Step Solution
- Step 1: Write the proportion equation
153,903.40 : 230,855.10 = 136,277.80 : x - Step 2: Convert to fraction form
153,903.40/230,855.10 = 136,277.80/x - Step 3: Cross multiply
153,903.40x = 230,855.10 × 136,277.80 - Step 4: Simplify right side
153,903.40x = 31,460,425,146.78 - Step 5: Solve for x
x = 31,460,425,146.78/153,903.40 - Step 6: Final answer
x = 204,416.70
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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.