Finding the Fourth Proportional to 282,727.80, 390,159.99 and 155,400.66
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Solution
The fourth proportional to 282,727.80, 390,159.99 and 155,400.66 is: 214,450.51
Step by Step Solution
- Step 1: Write the proportion equation
282,727.80 : 390,159.99 = 155,400.66 : x - Step 2: Convert to fraction form
282,727.80/390,159.99 = 155,400.66/x - Step 3: Cross multiply
282,727.80x = 390,159.99 × 155,400.66 - Step 4: Simplify right side
282,727.80x = 60,631,119,951.59 - Step 5: Solve for x
x = 60,631,119,951.59/282,727.80 - Step 6: Final answer
x = 214,450.51
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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.