Finding the Fourth Proportional to 472,218.48, 651,642.53 and 257,353.94
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Solution
The fourth proportional to 472,218.48, 651,642.53 and 257,353.94 is: 355,138.09
Step by Step Solution
- Step 1: Write the proportion equation
472,218.48 : 651,642.53 = 257,353.94 : x - Step 2: Convert to fraction form
472,218.48/651,642.53 = 257,353.94/x - Step 3: Cross multiply
472,218.48x = 651,642.53 × 257,353.94 - Step 4: Simplify right side
472,218.48x = 167,702,768,022.09 - Step 5: Solve for x
x = 167,702,768,022.09/472,218.48 - Step 6: Final answer
x = 355,138.09
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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.