Finding the Fourth Proportional to 268,206.40, 402,616.80 and 157,460.80
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Solution
The fourth proportional to 268,206.40, 402,616.80 and 157,460.80 is: 236,371.55
Step by Step Solution
- Step 1: Write the proportion equation
268,206.40 : 402,616.80 = 157,460.80 : x - Step 2: Convert to fraction form
268,206.40/402,616.80 = 157,460.80/x - Step 3: Cross multiply
268,206.40x = 402,616.80 × 157,460.80 - Step 4: Simplify right side
268,206.40x = 63,396,363,421.44 - Step 5: Solve for x
x = 63,396,363,421.44/268,206.40 - Step 6: Final answer
x = 236,371.55
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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.