Finding the Fourth Proportional to 286,651.17, 395,576.28 and 155,827.98
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Solution
The fourth proportional to 286,651.17, 395,576.28 and 155,827.98 is: 215,041.34
Step by Step Solution
- Step 1: Write the proportion equation
286,651.17 : 395,576.28 = 155,827.98 : x - Step 2: Convert to fraction form
286,651.17/395,576.28 = 155,827.98/x - Step 3: Cross multiply
286,651.17x = 395,576.28 × 155,827.98 - Step 4: Simplify right side
286,651.17x = 61,641,852,648.31 - Step 5: Solve for x
x = 61,641,852,648.31/286,651.17 - Step 6: Final answer
x = 215,041.34
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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.