Finding the Fourth Proportional to 478,194.21, 717,176.25 and 141,143.94
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Solution
The fourth proportional to 478,194.21, 717,176.25 and 141,143.94 is: 211,681.95
Step by Step Solution
- Step 1: Write the proportion equation
478,194.21 : 717,176.25 = 141,143.94 : x - Step 2: Convert to fraction form
478,194.21/717,176.25 = 141,143.94/x - Step 3: Cross multiply
478,194.21x = 717,176.25 × 141,143.94 - Step 4: Simplify right side
478,194.21x = 101,225,081,599.43 - Step 5: Solve for x
x = 101,225,081,599.43/478,194.21 - Step 6: Final answer
x = 211,681.95
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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.