Finding the Fourth Proportional to 342,854.40, 472,689.36 and 235,237.80
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Solution
The fourth proportional to 342,854.40, 472,689.36 and 235,237.80 is: 324,319.61
Step by Step Solution
- Step 1: Write the proportion equation
342,854.40 : 472,689.36 = 235,237.80 : x - Step 2: Convert to fraction form
342,854.40/472,689.36 = 235,237.80/x - Step 3: Cross multiply
342,854.40x = 472,689.36 × 235,237.80 - Step 4: Simplify right side
342,854.40x = 111,194,405,129.81 - Step 5: Solve for x
x = 111,194,405,129.81/342,854.40 - Step 6: Final answer
x = 324,319.61
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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.