Finding the Fourth Proportional to 399,315.71, 551,051.50 and 218,027.08
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Solution
The fourth proportional to 399,315.71, 551,051.50 and 218,027.08 is: 300,875.09
Step by Step Solution
- Step 1: Write the proportion equation
399,315.71 : 551,051.50 = 218,027.08 : x - Step 2: Convert to fraction form
399,315.71/551,051.50 = 218,027.08/x - Step 3: Cross multiply
399,315.71x = 551,051.50 × 218,027.08 - Step 4: Simplify right side
399,315.71x = 120,144,149,474.62 - Step 5: Solve for x
x = 120,144,149,474.62/399,315.71 - Step 6: Final answer
x = 300,875.09
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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.