Finding the Fourth Proportional to 368,933.70, 553,400.55 and 275,621.70
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Solution
The fourth proportional to 368,933.70, 553,400.55 and 275,621.70 is: 413,432.55
Step by Step Solution
- Step 1: Write the proportion equation
368,933.70 : 553,400.55 = 275,621.70 : x - Step 2: Convert to fraction form
368,933.70/553,400.55 = 275,621.70/x - Step 3: Cross multiply
368,933.70x = 553,400.55 × 275,621.70 - Step 4: Simplify right side
368,933.70x = 152,529,200,371.94 - Step 5: Solve for x
x = 152,529,200,371.94/368,933.70 - Step 6: Final answer
x = 413,432.55
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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.