Finding the Fourth Proportional to 419,192.02, 578,466.84 and 228,206.08
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Solution
The fourth proportional to 419,192.02, 578,466.84 and 228,206.08 is: 314,914.51
Step by Step Solution
- Step 1: Write the proportion equation
419,192.02 : 578,466.84 = 228,206.08 : x - Step 2: Convert to fraction form
419,192.02/578,466.84 = 228,206.08/x - Step 3: Cross multiply
419,192.02x = 578,466.84 × 228,206.08 - Step 4: Simplify right side
419,192.02x = 132,009,649,966.39 - Step 5: Solve for x
x = 132,009,649,966.39/419,192.02 - Step 6: Final answer
x = 314,914.51
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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.