Finding the Fourth Proportional to 145,281.99, 217,925.17 and 55,329.68
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Solution
The fourth proportional to 145,281.99, 217,925.17 and 55,329.68 is: 82,995.35
Step by Step Solution
- Step 1: Write the proportion equation
145,281.99 : 217,925.17 = 55,329.68 : x - Step 2: Convert to fraction form
145,281.99/217,925.17 = 55,329.68/x - Step 3: Cross multiply
145,281.99x = 217,925.17 × 55,329.68 - Step 4: Simplify right side
145,281.99x = 12,057,729,297.61 - Step 5: Solve for x
x = 12,057,729,297.61/145,281.99 - Step 6: Final answer
x = 82,995.35
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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.