Finding the Fourth Proportional to 249,721.43, 344,638.08 and 142,326.07
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Solution
The fourth proportional to 249,721.43, 344,638.08 and 142,326.07 is: 196,422.80
Step by Step Solution
- Step 1: Write the proportion equation
249,721.43 : 344,638.08 = 142,326.07 : x - Step 2: Convert to fraction form
249,721.43/344,638.08 = 142,326.07/x - Step 3: Cross multiply
249,721.43x = 344,638.08 × 142,326.07 - Step 4: Simplify right side
249,721.43x = 49,050,982,637.15 - Step 5: Solve for x
x = 49,050,982,637.15/249,721.43 - Step 6: Final answer
x = 196,422.80
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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.