Finding the Fourth Proportional to 359,406.99, 539,159.09 and 122,686.11
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Solution
The fourth proportional to 359,406.99, 539,159.09 and 122,686.11 is: 184,045.75
Step by Step Solution
- Step 1: Write the proportion equation
359,406.99 : 539,159.09 = 122,686.11 : x - Step 2: Convert to fraction form
359,406.99/539,159.09 = 122,686.11/x - Step 3: Cross multiply
359,406.99x = 539,159.09 × 122,686.11 - Step 4: Simplify right side
359,406.99x = 66,147,330,809.81 - Step 5: Solve for x
x = 66,147,330,809.81/359,406.99 - Step 6: Final answer
x = 184,045.75
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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.