Finding the Fourth Proportional to 292,284.40, 438,426.60 and 274,569.70
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Solution
The fourth proportional to 292,284.40, 438,426.60 and 274,569.70 is: 411,854.55
Step by Step Solution
- Step 1: Write the proportion equation
292,284.40 : 438,426.60 = 274,569.70 : x - Step 2: Convert to fraction form
292,284.40/438,426.60 = 274,569.70/x - Step 3: Cross multiply
292,284.40x = 438,426.60 × 274,569.70 - Step 4: Simplify right side
292,284.40x = 120,378,660,034.02 - Step 5: Solve for x
x = 120,378,660,034.02/292,284.40 - Step 6: Final answer
x = 411,854.55
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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.