Finding the Fourth Proportional to 193,669.79, 290,448.18 and 75,312.99
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Solution
The fourth proportional to 193,669.79, 290,448.18 and 75,312.99 is: 112,947.51
Step by Step Solution
- Step 1: Write the proportion equation
193,669.79 : 290,448.18 = 75,312.99 : x - Step 2: Convert to fraction form
193,669.79/290,448.18 = 75,312.99/x - Step 3: Cross multiply
193,669.79x = 290,448.18 × 75,312.99 - Step 4: Simplify right side
193,669.79x = 21,874,520,875.86 - Step 5: Solve for x
x = 21,874,520,875.86/193,669.79 - Step 6: Final answer
x = 112,947.51
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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.