Finding the Fourth Proportional to 399,248.36, 550,929.62 and 227,120.52
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Solution
The fourth proportional to 399,248.36, 550,929.62 and 227,120.52 is: 313,407.48
Step by Step Solution
- Step 1: Write the proportion equation
399,248.36 : 550,929.62 = 227,120.52 : x - Step 2: Convert to fraction form
399,248.36/550,929.62 = 227,120.52/x - Step 3: Cross multiply
399,248.36x = 550,929.62 × 227,120.52 - Step 4: Simplify right side
399,248.36x = 125,127,422,345.60 - Step 5: Solve for x
x = 125,127,422,345.60/399,248.36 - Step 6: Final answer
x = 313,407.48
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.