Finding the Fourth Proportional to 438,507.41, 657,646.94 and 185,657.75
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Solution
The fourth proportional to 438,507.41, 657,646.94 and 185,657.75 is: 278,438.28
Step by Step Solution
- Step 1: Write the proportion equation
438,507.41 : 657,646.94 = 185,657.75 : x - Step 2: Convert to fraction form
438,507.41/657,646.94 = 185,657.75/x - Step 3: Cross multiply
438,507.41x = 657,646.94 × 185,657.75 - Step 4: Simplify right side
438,507.41x = 122,097,251,174.79 - Step 5: Solve for x
x = 122,097,251,174.79/438,507.41 - Step 6: Final answer
x = 278,438.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.