Finding the Fourth Proportional to 508,749.75, 763,139.21 and 134,772.75
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Solution
The fourth proportional to 508,749.75, 763,139.21 and 134,772.75 is: 202,162.99
Step by Step Solution
- Step 1: Write the proportion equation
508,749.75 : 763,139.21 = 134,772.75 : x - Step 2: Convert to fraction form
508,749.75/763,139.21 = 134,772.75/x - Step 3: Cross multiply
508,749.75x = 763,139.21 × 134,772.75 - Step 4: Simplify right side
508,749.75x = 102,850,369,964.53 - Step 5: Solve for x
x = 102,850,369,964.53/508,749.75 - Step 6: Final answer
x = 202,162.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.