Finding the Fourth Proportional to 411,852.36, 617,795.82 and 145,615.08
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Solution
The fourth proportional to 411,852.36, 617,795.82 and 145,615.08 is: 218,428.73
Step by Step Solution
- Step 1: Write the proportion equation
411,852.36 : 617,795.82 = 145,615.08 : x - Step 2: Convert to fraction form
411,852.36/617,795.82 = 145,615.08/x - Step 3: Cross multiply
411,852.36x = 617,795.82 × 145,615.08 - Step 4: Simplify right side
411,852.36x = 89,960,387,752.97 - Step 5: Solve for x
x = 89,960,387,752.97/411,852.36 - Step 6: Final answer
x = 218,428.73
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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.