Finding the Fourth Proportional to 224,355.24, 309,626.82 and 128,865.96
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Solution
The fourth proportional to 224,355.24, 309,626.82 and 128,865.96 is: 177,844.55
Step by Step Solution
- Step 1: Write the proportion equation
224,355.24 : 309,626.82 = 128,865.96 : x - Step 2: Convert to fraction form
224,355.24/309,626.82 = 128,865.96/x - Step 3: Cross multiply
224,355.24x = 309,626.82 × 128,865.96 - Step 4: Simplify right side
224,355.24x = 39,900,357,401.05 - Step 5: Solve for x
x = 39,900,357,401.05/224,355.24 - Step 6: Final answer
x = 177,844.55
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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.