Finding the Fourth Proportional to 438,688.13, 605,390.42 and 237,484.13
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Solution
The fourth proportional to 438,688.13, 605,390.42 and 237,484.13 is: 327,728.53
Step by Step Solution
- Step 1: Write the proportion equation
438,688.13 : 605,390.42 = 237,484.13 : x - Step 2: Convert to fraction form
438,688.13/605,390.42 = 237,484.13/x - Step 3: Cross multiply
438,688.13x = 605,390.42 × 237,484.13 - Step 4: Simplify right side
438,688.13x = 143,770,614,770.79 - Step 5: Solve for x
x = 143,770,614,770.79/438,688.13 - Step 6: Final answer
x = 327,728.53
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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.