Finding the Fourth Proportional to 276,854.20, 415,281.30 and 89,865.70
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Solution
The fourth proportional to 276,854.20, 415,281.30 and 89,865.70 is: 134,798.55
Step by Step Solution
- Step 1: Write the proportion equation
276,854.20 : 415,281.30 = 89,865.70 : x - Step 2: Convert to fraction form
276,854.20/415,281.30 = 89,865.70/x - Step 3: Cross multiply
276,854.20x = 415,281.30 × 89,865.70 - Step 4: Simplify right side
276,854.20x = 37,319,544,721.41 - Step 5: Solve for x
x = 37,319,544,721.41/276,854.20 - Step 6: Final answer
x = 134,798.55
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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.