Finding the Fourth Proportional to 292,422.80, 437,759.40 and 257,430.80
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Solution
The fourth proportional to 292,422.80, 437,759.40 and 257,430.80 is: 385,376.08
Step by Step Solution
- Step 1: Write the proportion equation
292,422.80 : 437,759.40 = 257,430.80 : x - Step 2: Convert to fraction form
292,422.80/437,759.40 = 257,430.80/x - Step 3: Cross multiply
292,422.80x = 437,759.40 × 257,430.80 - Step 4: Simplify right side
292,422.80x = 112,692,752,549.52 - Step 5: Solve for x
x = 112,692,752,549.52/292,422.80 - Step 6: Final answer
x = 385,376.08
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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.