Finding the Fourth Proportional to 237,863.20, 328,266.40 and 157,149.12
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Solution
The fourth proportional to 237,863.20, 328,266.40 and 157,149.12 is: 216,875.82
Step by Step Solution
- Step 1: Write the proportion equation
237,863.20 : 328,266.40 = 157,149.12 : x - Step 2: Convert to fraction form
237,863.20/328,266.40 = 157,149.12/x - Step 3: Cross multiply
237,863.20x = 328,266.40 × 157,149.12 - Step 4: Simplify right side
237,863.20x = 51,586,775,885.57 - Step 5: Solve for x
x = 51,586,775,885.57/237,863.20 - Step 6: Final answer
x = 216,875.82
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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.