Finding the Fourth Proportional to 292,417.74, 438,642.06 and 82,072.08
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Solution
The fourth proportional to 292,417.74, 438,642.06 and 82,072.08 is: 123,112.46
Step by Step Solution
- Step 1: Write the proportion equation
292,417.74 : 438,642.06 = 82,072.08 : x - Step 2: Convert to fraction form
292,417.74/438,642.06 = 82,072.08/x - Step 3: Cross multiply
292,417.74x = 438,642.06 × 82,072.08 - Step 4: Simplify right side
292,417.74x = 36,000,266,239.68 - Step 5: Solve for x
x = 36,000,266,239.68/292,417.74 - Step 6: Final answer
x = 123,112.46
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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.