Finding the Fourth Proportional to 237,949.84, 328,381.05 and 142,438.08
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Solution
The fourth proportional to 237,949.84, 328,381.05 and 142,438.08 is: 196,570.70
Step by Step Solution
- Step 1: Write the proportion equation
237,949.84 : 328,381.05 = 142,438.08 : x - Step 2: Convert to fraction form
237,949.84/328,381.05 = 142,438.08/x - Step 3: Cross multiply
237,949.84x = 328,381.05 × 142,438.08 - Step 4: Simplify right side
237,949.84x = 46,773,966,270.38 - Step 5: Solve for x
x = 46,773,966,270.38/237,949.84 - Step 6: Final answer
x = 196,570.70
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1.5x scale
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.