Finding the Fourth Proportional to 246,403.30, 340,036.47 and 138,973.09
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Solution
The fourth proportional to 246,403.30, 340,036.47 and 138,973.09 is: 191,782.82
Step by Step Solution
- Step 1: Write the proportion equation
246,403.30 : 340,036.47 = 138,973.09 : x - Step 2: Convert to fraction form
246,403.30/340,036.47 = 138,973.09/x - Step 3: Cross multiply
246,403.30x = 340,036.47 × 138,973.09 - Step 4: Simplify right side
246,403.30x = 47,255,918,948.59 - Step 5: Solve for x
x = 47,255,918,948.59/246,403.30 - Step 6: Final answer
x = 191,782.82
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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.