Finding the Fourth Proportional to 643,337.76, 964,726.28 and 216,794.09
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Solution
The fourth proportional to 643,337.76, 964,726.28 and 216,794.09 is: 325,096.66
Step by Step Solution
- Step 1: Write the proportion equation
643,337.76 : 964,726.28 = 216,794.09 : x - Step 2: Convert to fraction form
643,337.76/964,726.28 = 216,794.09/x - Step 3: Cross multiply
643,337.76x = 964,726.28 × 216,794.09 - Step 4: Simplify right side
643,337.76x = 209,146,955,971.69 - Step 5: Solve for x
x = 209,146,955,971.69/643,337.76 - Step 6: Final answer
x = 325,096.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.