Finding the Fourth Proportional to 352,190.79, 528,266.74 and 257,517.99
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Solution
The fourth proportional to 352,190.79, 528,266.74 and 257,517.99 is: 386,262.77
Step by Step Solution
- Step 1: Write the proportion equation
352,190.79 : 528,266.74 = 257,517.99 : x - Step 2: Convert to fraction form
352,190.79/528,266.74 = 257,517.99/x - Step 3: Cross multiply
352,190.79x = 528,266.74 × 257,517.99 - Step 4: Simplify right side
352,190.79x = 136,038,189,068.65 - Step 5: Solve for x
x = 136,038,189,068.65/352,190.79 - Step 6: Final answer
x = 386,262.77
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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.