Finding the Fourth Proportional to 292,128.75, 403,137.68 and 157,992.75
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Solution
The fourth proportional to 292,128.75, 403,137.68 and 157,992.75 is: 218,030.00
Step by Step Solution
- Step 1: Write the proportion equation
292,128.75 : 403,137.68 = 157,992.75 : x - Step 2: Convert to fraction form
292,128.75/403,137.68 = 157,992.75/x - Step 3: Cross multiply
292,128.75x = 403,137.68 × 157,992.75 - Step 4: Simplify right side
292,128.75x = 63,692,829,901.86 - Step 5: Solve for x
x = 63,692,829,901.86/292,128.75 - Step 6: Final answer
x = 218,030.00
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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.