Finding the Fourth Proportional to 282,660.13, 390,069.70 and 161,800.75
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Solution
The fourth proportional to 282,660.13, 390,069.70 and 161,800.75 is: 223,284.30
Step by Step Solution
- Step 1: Write the proportion equation
282,660.13 : 390,069.70 = 161,800.75 : x - Step 2: Convert to fraction form
282,660.13/390,069.70 = 161,800.75/x - Step 3: Cross multiply
282,660.13x = 390,069.70 × 161,800.75 - Step 4: Simplify right side
282,660.13x = 63,113,570,012.28 - Step 5: Solve for x
x = 63,113,570,012.28/282,660.13 - Step 6: Final answer
x = 223,284.30
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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.