Finding the Fourth Proportional to 408,400.94, 612,201.47 and 228,574.19
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Solution
The fourth proportional to 408,400.94, 612,201.47 and 228,574.19 is: 342,637.45
Step by Step Solution
- Step 1: Write the proportion equation
408,400.94 : 612,201.47 = 228,574.19 : x - Step 2: Convert to fraction form
408,400.94/612,201.47 = 228,574.19/x - Step 3: Cross multiply
408,400.94x = 612,201.47 × 228,574.19 - Step 4: Simplify right side
408,400.94x = 139,933,455,122.06 - Step 5: Solve for x
x = 139,933,455,122.06/408,400.94 - Step 6: Final answer
x = 342,637.45
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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.