Finding the Fourth Proportional to 201,621.70, 302,432.55 and 154,965.70
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Solution
The fourth proportional to 201,621.70, 302,432.55 and 154,965.70 is: 232,448.55
Step by Step Solution
- Step 1: Write the proportion equation
201,621.70 : 302,432.55 = 154,965.70 : x - Step 2: Convert to fraction form
201,621.70/302,432.55 = 154,965.70/x - Step 3: Cross multiply
201,621.70x = 302,432.55 × 154,965.70 - Step 4: Simplify right side
201,621.70x = 46,866,671,813.54 - Step 5: Solve for x
x = 46,866,671,813.54/201,621.70 - Step 6: Final answer
x = 232,448.55
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1.5x scale
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.