Finding the Fourth Proportional to 249,145.23, 343,815.62 and 135,968.79
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Solution
The fourth proportional to 249,145.23, 343,815.62 and 135,968.79 is: 187,634.31
Step by Step Solution
- Step 1: Write the proportion equation
249,145.23 : 343,815.62 = 135,968.79 : x - Step 2: Convert to fraction form
249,145.23/343,815.62 = 135,968.79/x - Step 3: Cross multiply
249,145.23x = 343,815.62 × 135,968.79 - Step 4: Simplify right side
249,145.23x = 46,748,193,834.50 - Step 5: Solve for x
x = 46,748,193,834.50/249,145.23 - Step 6: Final answer
x = 187,634.31
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1.5x scale
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.