Finding the Fourth Proportional to 509,476.68, 764,221.68 and 221,221.92
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Solution
The fourth proportional to 509,476.68, 764,221.68 and 221,221.92 is: 331,835.77
Step by Step Solution
- Step 1: Write the proportion equation
509,476.68 : 764,221.68 = 221,221.92 : x - Step 2: Convert to fraction form
509,476.68/764,221.68 = 221,221.92/x - Step 3: Cross multiply
509,476.68x = 764,221.68 × 221,221.92 - Step 4: Simplify right side
509,476.68x = 169,062,587,355.23 - Step 5: Solve for x
x = 169,062,587,355.23/509,476.68 - Step 6: Final answer
x = 331,835.77
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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.