Finding the Fourth Proportional to 438,158.70, 604,658.79 and 236,954.70
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Solution
The fourth proportional to 438,158.70, 604,658.79 and 236,954.70 is: 326,997.37
Step by Step Solution
- Step 1: Write the proportion equation
438,158.70 : 604,658.79 = 236,954.70 : x - Step 2: Convert to fraction form
438,158.70/604,658.79 = 236,954.70/x - Step 3: Cross multiply
438,158.70x = 604,658.79 × 236,954.70 - Step 4: Simplify right side
438,158.70x = 143,276,742,186.81 - Step 5: Solve for x
x = 143,276,742,186.81/438,158.70 - Step 6: Final answer
x = 326,997.37
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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.