Finding the Fourth Proportional to 387,661.14, 534,893.95 and 226,485.06
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Solution
The fourth proportional to 387,661.14, 534,893.95 and 226,485.06 is: 312,503.56
Step by Step Solution
- Step 1: Write the proportion equation
387,661.14 : 534,893.95 = 226,485.06 : x - Step 2: Convert to fraction form
387,661.14/534,893.95 = 226,485.06/x - Step 3: Cross multiply
387,661.14x = 534,893.95 × 226,485.06 - Step 4: Simplify right side
387,661.14x = 121,145,486,636.64 - Step 5: Solve for x
x = 121,145,486,636.64/387,661.14 - Step 6: Final answer
x = 312,503.56
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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.