Finding the Fourth Proportional to 282,895.18, 390,393.19 and 153,833.70
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Solution
The fourth proportional to 282,895.18, 390,393.19 and 153,833.70 is: 212,289.33
Step by Step Solution
- Step 1: Write the proportion equation
282,895.18 : 390,393.19 = 153,833.70 : x - Step 2: Convert to fraction form
282,895.18/390,393.19 = 153,833.70/x - Step 3: Cross multiply
282,895.18x = 390,393.19 × 153,833.70 - Step 4: Simplify right side
282,895.18x = 60,055,628,872.50 - Step 5: Solve for x
x = 60,055,628,872.50/282,895.18 - Step 6: Final answer
x = 212,289.33
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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.