Finding the Fourth Proportional to 221,339.36, 305,417.50 and 125,835.50
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Solution
The fourth proportional to 221,339.36, 305,417.50 and 125,835.50 is: 173,635.47
Step by Step Solution
- Step 1: Write the proportion equation
221,339.36 : 305,417.50 = 125,835.50 : x - Step 2: Convert to fraction form
221,339.36/305,417.50 = 125,835.50/x - Step 3: Cross multiply
221,339.36x = 305,417.50 × 125,835.50 - Step 4: Simplify right side
221,339.36x = 38,432,361,979.57 - Step 5: Solve for x
x = 38,432,361,979.57/221,339.36 - Step 6: Final answer
x = 173,635.47
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1.5x scale
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.