Finding the Fourth Proportional to 419,239.14, 578,548.50 and 228,252.48
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Solution
The fourth proportional to 419,239.14, 578,548.50 and 228,252.48 is: 314,987.60
Step by Step Solution
- Step 1: Write the proportion equation
419,239.14 : 578,548.50 = 228,252.48 : x - Step 2: Convert to fraction form
419,239.14/578,548.50 = 228,252.48/x - Step 3: Cross multiply
419,239.14x = 578,548.50 × 228,252.48 - Step 4: Simplify right side
419,239.14x = 132,055,129,925.28 - Step 5: Solve for x
x = 132,055,129,925.28/419,239.14 - Step 6: Final answer
x = 314,987.60
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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.