Finding the Fourth Proportional to 418,367.64, 577,347.41 and 227,381.02
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Solution
The fourth proportional to 418,367.64, 577,347.41 and 227,381.02 is: 313,785.84
Step by Step Solution
- Step 1: Write the proportion equation
418,367.64 : 577,347.41 = 227,381.02 : x - Step 2: Convert to fraction form
418,367.64/577,347.41 = 227,381.02/x - Step 3: Cross multiply
418,367.64x = 577,347.41 × 227,381.02 - Step 4: Simplify right side
418,367.64x = 131,277,842,980.16 - Step 5: Solve for x
x = 131,277,842,980.16/418,367.64 - Step 6: Final answer
x = 313,785.84
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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.