Finding the Fourth Proportional to 418,671.80, 628,014.90 and 119,160.08
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Solution
The fourth proportional to 418,671.80, 628,014.90 and 119,160.08 is: 178,742.17
Step by Step Solution
- Step 1: Write the proportion equation
418,671.80 : 628,014.90 = 119,160.08 : x - Step 2: Convert to fraction form
418,671.80/628,014.90 = 119,160.08/x - Step 3: Cross multiply
418,671.80x = 628,014.90 × 119,160.08 - Step 4: Simplify right side
418,671.80x = 74,834,305,725.19 - Step 5: Solve for x
x = 74,834,305,725.19/418,671.80 - Step 6: Final answer
x = 178,742.17
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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.