Finding the Fourth Proportional to 315,347.18, 435,541.12 and 229,687.79
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Solution
The fourth proportional to 315,347.18, 435,541.12 and 229,687.79 is: 317,232.82
Step by Step Solution
- Step 1: Write the proportion equation
315,347.18 : 435,541.12 = 229,687.79 : x - Step 2: Convert to fraction form
315,347.18/435,541.12 = 229,687.79/x - Step 3: Cross multiply
315,347.18x = 435,541.12 × 229,687.79 - Step 4: Simplify right side
315,347.18x = 100,038,474,555.00 - Step 5: Solve for x
x = 100,038,474,555.00/315,347.18 - Step 6: Final answer
x = 317,232.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.