Finding the Fourth Proportional to 374,429.80, 561,644.70 and 121,709.80
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Solution
The fourth proportional to 374,429.80, 561,644.70 and 121,709.80 is: 182,564.70
Step by Step Solution
- Step 1: Write the proportion equation
374,429.80 : 561,644.70 = 121,709.80 : x - Step 2: Convert to fraction form
374,429.80/561,644.70 = 121,709.80/x - Step 3: Cross multiply
374,429.80x = 561,644.70 × 121,709.80 - Step 4: Simplify right side
374,429.80x = 68,357,664,108.06 - Step 5: Solve for x
x = 68,357,664,108.06/374,429.80 - Step 6: Final answer
x = 182,564.70
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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.