Finding the Fourth Proportional to 468,338.63, 646,307.26 and 253,478.68
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Solution
The fourth proportional to 468,338.63, 646,307.26 and 253,478.68 is: 349,800.55
Step by Step Solution
- Step 1: Write the proportion equation
468,338.63 : 646,307.26 = 253,478.68 : x - Step 2: Convert to fraction form
468,338.63/646,307.26 = 253,478.68/x - Step 3: Cross multiply
468,338.63x = 646,307.26 × 253,478.68 - Step 4: Simplify right side
468,338.63x = 163,825,111,139.22 - Step 5: Solve for x
x = 163,825,111,139.22/468,338.63 - Step 6: Final answer
x = 349,800.55
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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.