Finding the Fourth Proportional to 345,562.28, 518,398.98 and 120,917.70
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Solution
The fourth proportional to 345,562.28, 518,398.98 and 120,917.70 is: 181,395.99
Step by Step Solution
- Step 1: Write the proportion equation
345,562.28 : 518,398.98 = 120,917.70 : x - Step 2: Convert to fraction form
345,562.28/518,398.98 = 120,917.70/x - Step 3: Cross multiply
345,562.28x = 518,398.98 × 120,917.70 - Step 4: Simplify right side
345,562.28x = 62,683,612,343.95 - Step 5: Solve for x
x = 62,683,612,343.95/345,562.28 - Step 6: Final answer
x = 181,395.99
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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.