Finding the Fourth Proportional to 342,303.18, 472,394.97 and 189,340.71
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Solution
The fourth proportional to 342,303.18, 472,394.97 and 189,340.71 is: 261,299.35
Step by Step Solution
- Step 1: Write the proportion equation
342,303.18 : 472,394.97 = 189,340.71 : x - Step 2: Convert to fraction form
342,303.18/472,394.97 = 189,340.71/x - Step 3: Cross multiply
342,303.18x = 472,394.97 × 189,340.71 - Step 4: Simplify right side
342,303.18x = 89,443,599,020.23 - Step 5: Solve for x
x = 89,443,599,020.23/342,303.18 - Step 6: Final answer
x = 261,299.35
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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.