Finding the Fourth Proportional to 438,201.36, 657,374.67 and 153,818.09
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Solution
The fourth proportional to 438,201.36, 657,374.67 and 153,818.09 is: 230,752.63
Step by Step Solution
- Step 1: Write the proportion equation
438,201.36 : 657,374.67 = 153,818.09 : x - Step 2: Convert to fraction form
438,201.36/657,374.67 = 153,818.09/x - Step 3: Cross multiply
438,201.36x = 657,374.67 × 153,818.09 - Step 4: Simplify right side
438,201.36x = 101,116,115,332.06 - Step 5: Solve for x
x = 101,116,115,332.06/438,201.36 - Step 6: Final answer
x = 230,752.63
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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.