Finding the Fourth Proportional to 299,490.13, 413,365.31 and 197,533.81
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Solution
The fourth proportional to 299,490.13, 413,365.31 and 197,533.81 is: 272,642.12
Step by Step Solution
- Step 1: Write the proportion equation
299,490.13 : 413,365.31 = 197,533.81 : x - Step 2: Convert to fraction form
299,490.13/413,365.31 = 197,533.81/x - Step 3: Cross multiply
299,490.13x = 413,365.31 × 197,533.81 - Step 4: Simplify right side
299,490.13x = 81,653,624,606.13 - Step 5: Solve for x
x = 81,653,624,606.13/299,490.13 - Step 6: Final answer
x = 272,642.12
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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.