Finding the Fourth Proportional to 344,138.60, 474,778.74 and 253,709.54
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Solution
The fourth proportional to 344,138.60, 474,778.74 and 253,709.54 is: 350,021.46
Step by Step Solution
- Step 1: Write the proportion equation
344,138.60 : 474,778.74 = 253,709.54 : x - Step 2: Convert to fraction form
344,138.60/474,778.74 = 253,709.54/x - Step 3: Cross multiply
344,138.60x = 474,778.74 × 253,709.54 - Step 4: Simplify right side
344,138.60x = 120,455,895,727.18 - Step 5: Solve for x
x = 120,455,895,727.18/344,138.60 - Step 6: Final answer
x = 350,021.46
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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.