Finding the Fourth Proportional to 315,387.28, 473,178.12 and 189,167.68
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Solution
The fourth proportional to 315,387.28, 473,178.12 and 189,167.68 is: 283,809.82
Step by Step Solution
- Step 1: Write the proportion equation
315,387.28 : 473,178.12 = 189,167.68 : x - Step 2: Convert to fraction form
315,387.28/473,178.12 = 189,167.68/x - Step 3: Cross multiply
315,387.28x = 473,178.12 × 189,167.68 - Step 4: Simplify right side
315,387.28x = 89,510,007,187.16 - Step 5: Solve for x
x = 89,510,007,187.16/315,387.28 - Step 6: Final answer
x = 283,809.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.