Finding the Fourth Proportional to 283,134.07, 390,715.41 and 155,809.36
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Solution
The fourth proportional to 283,134.07, 390,715.41 and 155,809.36 is: 215,011.63
Step by Step Solution
- Step 1: Write the proportion equation
283,134.07 : 390,715.41 = 155,809.36 : x - Step 2: Convert to fraction form
283,134.07/390,715.41 = 155,809.36/x - Step 3: Cross multiply
283,134.07x = 390,715.41 × 155,809.36 - Step 4: Simplify right side
283,134.07x = 60,877,117,974.24 - Step 5: Solve for x
x = 60,877,117,974.24/283,134.07 - Step 6: Final answer
x = 215,011.63
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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.