Finding the Fourth Proportional to 348,539.13, 522,813.86 and 135,319.39
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Solution
The fourth proportional to 348,539.13, 522,813.86 and 135,319.39 is: 202,981.09
Step by Step Solution
- Step 1: Write the proportion equation
348,539.13 : 522,813.86 = 135,319.39 : x - Step 2: Convert to fraction form
348,539.13/522,813.86 = 135,319.39/x - Step 3: Cross multiply
348,539.13x = 522,813.86 × 135,319.39 - Step 4: Simplify right side
348,539.13x = 70,746,852,618.75 - Step 5: Solve for x
x = 70,746,852,618.75/348,539.13 - Step 6: Final answer
x = 202,981.09
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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.