Finding the Fourth Proportional to 421,015.08, 581,001.36 and 239,727.09
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Solution
The fourth proportional to 421,015.08, 581,001.36 and 239,727.09 is: 330,823.70
Step by Step Solution
- Step 1: Write the proportion equation
421,015.08 : 581,001.36 = 239,727.09 : x - Step 2: Convert to fraction form
421,015.08/581,001.36 = 239,727.09/x - Step 3: Cross multiply
421,015.08x = 581,001.36 × 239,727.09 - Step 4: Simplify right side
421,015.08x = 139,281,765,318.84 - Step 5: Solve for x
x = 139,281,765,318.84/421,015.08 - Step 6: Final answer
x = 330,823.70
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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.