Finding the Fourth Proportional to 384,894.78, 531,133.36 and 212,802.78
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Solution
The fourth proportional to 384,894.78, 531,133.36 and 212,802.78 is: 293,655.99
Step by Step Solution
- Step 1: Write the proportion equation
384,894.78 : 531,133.36 = 212,802.78 : x - Step 2: Convert to fraction form
384,894.78/531,133.36 = 212,802.78/x - Step 3: Cross multiply
384,894.78x = 531,133.36 × 212,802.78 - Step 4: Simplify right side
384,894.78x = 113,026,655,558.74 - Step 5: Solve for x
x = 113,026,655,558.74/384,894.78 - Step 6: Final answer
x = 293,655.99
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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.