Finding the Fourth Proportional to 472,218.18, 651,642.08 and 257,353.62
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Solution
The fourth proportional to 472,218.18, 651,642.08 and 257,353.62 is: 355,137.63
Step by Step Solution
- Step 1: Write the proportion equation
472,218.18 : 651,642.08 = 257,353.62 : x - Step 2: Convert to fraction form
472,218.18/651,642.08 = 257,353.62/x - Step 3: Cross multiply
472,218.18x = 651,642.08 × 257,353.62 - Step 4: Simplify right side
472,218.18x = 167,702,444,974.12 - Step 5: Solve for x
x = 167,702,444,974.12/472,218.18 - Step 6: Final answer
x = 355,137.63
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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.