Finding the Fourth Proportional to 418,746.51, 628,177.68 and 134,370.19
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Solution
The fourth proportional to 418,746.51, 628,177.68 and 134,370.19 is: 201,573.87
Step by Step Solution
- Step 1: Write the proportion equation
418,746.51 : 628,177.68 = 134,370.19 : x - Step 2: Convert to fraction form
418,746.51/628,177.68 = 134,370.19/x - Step 3: Cross multiply
418,746.51x = 628,177.68 × 134,370.19 - Step 4: Simplify right side
418,746.51x = 84,408,355,000.58 - Step 5: Solve for x
x = 84,408,355,000.58/418,746.51 - Step 6: Final answer
x = 201,573.87
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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.