Finding the Fourth Proportional to 438,472.37, 657,726.84 and 138,946.32
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Solution
The fourth proportional to 438,472.37, 657,726.84 and 138,946.32 is: 208,425.28
Step by Step Solution
- Step 1: Write the proportion equation
438,472.37 : 657,726.84 = 138,946.32 : x - Step 2: Convert to fraction form
438,472.37/657,726.84 = 138,946.32/x - Step 3: Cross multiply
438,472.37x = 657,726.84 × 138,946.32 - Step 4: Simplify right side
438,472.37x = 91,388,723,983.23 - Step 5: Solve for x
x = 91,388,723,983.23/438,472.37 - Step 6: Final answer
x = 208,425.28
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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.