Finding the Fourth Proportional to 292,237.74, 438,307.20 and 81,827.28
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Solution
The fourth proportional to 292,237.74, 438,307.20 and 81,827.28 is: 122,727.09
Step by Step Solution
- Step 1: Write the proportion equation
292,237.74 : 438,307.20 = 81,827.28 : x - Step 2: Convert to fraction form
292,237.74/438,307.20 = 81,827.28/x - Step 3: Cross multiply
292,237.74x = 438,307.20 × 81,827.28 - Step 4: Simplify right side
292,237.74x = 35,865,485,980.42 - Step 5: Solve for x
x = 35,865,485,980.42/292,237.74 - Step 6: Final answer
x = 122,727.09
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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.