Finding the Fourth Proportional to 399,014.19, 550,652.86 and 217,736.07
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Solution
The fourth proportional to 399,014.19, 550,652.86 and 217,736.07 is: 300,483.02
Step by Step Solution
- Step 1: Write the proportion equation
399,014.19 : 550,652.86 = 217,736.07 : x - Step 2: Convert to fraction form
399,014.19/550,652.86 = 217,736.07/x - Step 3: Cross multiply
399,014.19x = 550,652.86 × 217,736.07 - Step 4: Simplify right side
399,014.19x = 119,896,990,215.00 - Step 5: Solve for x
x = 119,896,990,215.00/399,014.19 - Step 6: Final answer
x = 300,483.02
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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.