Finding the Fourth Proportional to 268,630.84, 370,711.41 and 147,781.32
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Solution
The fourth proportional to 268,630.84, 370,711.41 and 147,781.32 is: 203,938.69
Step by Step Solution
- Step 1: Write the proportion equation
268,630.84 : 370,711.41 = 147,781.32 : x - Step 2: Convert to fraction form
268,630.84/370,711.41 = 147,781.32/x - Step 3: Cross multiply
268,630.84x = 370,711.41 × 147,781.32 - Step 4: Simplify right side
268,630.84x = 54,784,221,508.86 - Step 5: Solve for x
x = 54,784,221,508.86/268,630.84 - Step 6: Final answer
x = 203,938.69
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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.