Finding the Fourth Proportional to 239,114.01, 329,974.85 and 131,681.75
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Solution
The fourth proportional to 239,114.01, 329,974.85 and 131,681.75 is: 181,719.45
Step by Step Solution
- Step 1: Write the proportion equation
239,114.01 : 329,974.85 = 131,681.75 : x - Step 2: Convert to fraction form
239,114.01/329,974.85 = 131,681.75/x - Step 3: Cross multiply
239,114.01x = 329,974.85 × 131,681.75 - Step 4: Simplify right side
239,114.01x = 43,451,665,703.99 - Step 5: Solve for x
x = 43,451,665,703.99/239,114.01 - Step 6: Final answer
x = 181,719.45
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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.