Finding the Fourth Proportional to 411,758.97, 617,688.29 and 145,464.99
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Solution
The fourth proportional to 411,758.97, 617,688.29 and 145,464.99 is: 218,215.09
Step by Step Solution
- Step 1: Write the proportion equation
411,758.97 : 617,688.29 = 145,464.99 : x - Step 2: Convert to fraction form
411,758.97/617,688.29 = 145,464.99/x - Step 3: Cross multiply
411,758.97x = 617,688.29 × 145,464.99 - Step 4: Simplify right side
411,758.97x = 89,852,020,927.97 - Step 5: Solve for x
x = 89,852,020,927.97/411,758.97 - Step 6: Final answer
x = 218,215.09
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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.