Finding the Fourth Proportional to 249,149.79, 343,821.92 and 135,973.35
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Solution
The fourth proportional to 249,149.79, 343,821.92 and 135,973.35 is: 187,640.61
Step by Step Solution
- Step 1: Write the proportion equation
249,149.79 : 343,821.92 = 135,973.35 : x - Step 2: Convert to fraction form
249,149.79/343,821.92 = 135,973.35/x - Step 3: Cross multiply
249,149.79x = 343,821.92 × 135,973.35 - Step 4: Simplify right side
249,149.79x = 46,750,617,585.97 - Step 5: Solve for x
x = 46,750,617,585.97/249,149.79 - Step 6: Final answer
x = 187,640.61
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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.