Finding the Fourth Proportional to 402,713.81, 555,691.57 and 249,696.18
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Solution
The fourth proportional to 402,713.81, 555,691.57 and 249,696.18 is: 344,547.56
Step by Step Solution
- Step 1: Write the proportion equation
402,713.81 : 555,691.57 = 249,696.18 : x - Step 2: Convert to fraction form
402,713.81/555,691.57 = 249,696.18/x - Step 3: Cross multiply
402,713.81x = 555,691.57 × 249,696.18 - Step 4: Simplify right side
402,713.81x = 138,754,061,662.96 - Step 5: Solve for x
x = 138,754,061,662.96/402,713.81 - Step 6: Final answer
x = 344,547.56
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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.