Finding the Fourth Proportional to 282,736.08, 390,155.88 and 155,419.92
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Solution
The fourth proportional to 282,736.08, 390,155.88 and 155,419.92 is: 214,468.54
Step by Step Solution
- Step 1: Write the proportion equation
282,736.08 : 390,155.88 = 155,419.92 : x - Step 2: Convert to fraction form
282,736.08/390,155.88 = 155,419.92/x - Step 3: Cross multiply
282,736.08x = 390,155.88 × 155,419.92 - Step 4: Simplify right side
282,736.08x = 60,637,995,657.13 - Step 5: Solve for x
x = 60,637,995,657.13/282,736.08 - Step 6: Final answer
x = 214,468.54
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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.