Finding the Fourth Proportional to 292,177.80, 438,266.70 and 278,399.70
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Solution
The fourth proportional to 292,177.80, 438,266.70 and 278,399.70 is: 417,599.55
Step by Step Solution
- Step 1: Write the proportion equation
292,177.80 : 438,266.70 = 278,399.70 : x - Step 2: Convert to fraction form
292,177.80/438,266.70 = 278,399.70/x - Step 3: Cross multiply
292,177.80x = 438,266.70 × 278,399.70 - Step 4: Simplify right side
292,177.80x = 122,013,317,799.99 - Step 5: Solve for x
x = 122,013,317,799.99/292,177.80 - Step 6: Final answer
x = 417,599.55
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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.