Finding the Fourth Proportional to 369,903.50, 554,412.07 and 189,804.05
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Solution
The fourth proportional to 369,903.50, 554,412.07 and 189,804.05 is: 284,478.67
Step by Step Solution
- Step 1: Write the proportion equation
369,903.50 : 554,412.07 = 189,804.05 : x - Step 2: Convert to fraction form
369,903.50/554,412.07 = 189,804.05/x - Step 3: Cross multiply
369,903.50x = 554,412.07 × 189,804.05 - Step 4: Simplify right side
369,903.50x = 105,229,656,254.88 - Step 5: Solve for x
x = 105,229,656,254.88/369,903.50 - Step 6: Final answer
x = 284,478.67
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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.