Finding the Fourth Proportional to 163,432.32, 245,355.84 and 138,963.84
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Solution
The fourth proportional to 163,432.32, 245,355.84 and 138,963.84 is: 208,622.07
Step by Step Solution
- Step 1: Write the proportion equation
163,432.32 : 245,355.84 = 138,963.84 : x - Step 2: Convert to fraction form
163,432.32/245,355.84 = 138,963.84/x - Step 3: Cross multiply
163,432.32x = 245,355.84 × 138,963.84 - Step 4: Simplify right side
163,432.32x = 34,095,589,692.83 - Step 5: Solve for x
x = 34,095,589,692.83/163,432.32 - Step 6: Final answer
x = 208,622.07
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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.