Finding the Fourth Proportional to 292,356.60, 438,534.90 and 221,497.80
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Solution
The fourth proportional to 292,356.60, 438,534.90 and 221,497.80 is: 332,246.70
Step by Step Solution
- Step 1: Write the proportion equation
292,356.60 : 438,534.90 = 221,497.80 : x - Step 2: Convert to fraction form
292,356.60/438,534.90 = 221,497.80/x - Step 3: Cross multiply
292,356.60x = 438,534.90 × 221,497.80 - Step 4: Simplify right side
292,356.60x = 97,134,515,573.22 - Step 5: Solve for x
x = 97,134,515,573.22/292,356.60 - Step 6: Final answer
x = 332,246.70
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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.