Finding the Fourth Proportional to 292,277.20, 438,415.80 and 134,813.20
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Solution
The fourth proportional to 292,277.20, 438,415.80 and 134,813.20 is: 202,219.80
Step by Step Solution
- Step 1: Write the proportion equation
292,277.20 : 438,415.80 = 134,813.20 : x - Step 2: Convert to fraction form
292,277.20/438,415.80 = 134,813.20/x - Step 3: Cross multiply
292,277.20x = 438,415.80 × 134,813.20 - Step 4: Simplify right side
292,277.20x = 59,104,236,928.56 - Step 5: Solve for x
x = 59,104,236,928.56/292,277.20 - Step 6: Final answer
x = 202,219.80
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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.