Finding the Fourth Proportional to 402,076.23, 554,866.71 and 218,315.07
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Solution
The fourth proportional to 402,076.23, 554,866.71 and 218,315.07 is: 301,275.62
Step by Step Solution
- Step 1: Write the proportion equation
402,076.23 : 554,866.71 = 218,315.07 : x - Step 2: Convert to fraction form
402,076.23/554,866.71 = 218,315.07/x - Step 3: Cross multiply
402,076.23x = 554,866.71 × 218,315.07 - Step 4: Simplify right side
402,076.23x = 121,135,765,376.20 - Step 5: Solve for x
x = 121,135,765,376.20/402,076.23 - Step 6: Final answer
x = 301,275.62
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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.