Finding the Fourth Proportional to 399,617.01, 551,471.94 and 218,331.99
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Solution
The fourth proportional to 399,617.01, 551,471.94 and 218,331.99 is: 301,298.40
Step by Step Solution
- Step 1: Write the proportion equation
399,617.01 : 551,471.94 = 218,331.99 : x - Step 2: Convert to fraction form
399,617.01/551,471.94 = 218,331.99/x - Step 3: Cross multiply
399,617.01x = 551,471.94 × 218,331.99 - Step 4: Simplify right side
399,617.01x = 120,403,966,089.36 - Step 5: Solve for x
x = 120,403,966,089.36/399,617.01 - Step 6: Final answer
x = 301,298.40
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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.