Finding the Fourth Proportional to 282,661.13, 390,071.08 and 161,801.75
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Solution
The fourth proportional to 282,661.13, 390,071.08 and 161,801.75 is: 223,285.68
Step by Step Solution
- Step 1: Write the proportion equation
282,661.13 : 390,071.08 = 161,801.75 : x - Step 2: Convert to fraction form
282,661.13/390,071.08 = 161,801.75/x - Step 3: Cross multiply
282,661.13x = 390,071.08 × 161,801.75 - Step 4: Simplify right side
282,661.13x = 63,114,183,368.39 - Step 5: Solve for x
x = 63,114,183,368.39/282,661.13 - Step 6: Final answer
x = 223,285.68
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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.