Finding the Fourth Proportional to 357,943.56, 536,878.43 and 121,280.09
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Solution
The fourth proportional to 357,943.56, 536,878.43 and 121,280.09 is: 181,907.62
Step by Step Solution
- Step 1: Write the proportion equation
357,943.56 : 536,878.43 = 121,280.09 : x - Step 2: Convert to fraction form
357,943.56/536,878.43 = 121,280.09/x - Step 3: Cross multiply
357,943.56x = 536,878.43 × 121,280.09 - Step 4: Simplify right side
357,943.56x = 65,112,661,473.47 - Step 5: Solve for x
x = 65,112,661,473.47/357,943.56 - Step 6: Final answer
x = 181,907.62
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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.