Finding the Fourth Proportional to 249,242.67, 343,953.14 and 136,065.42
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Solution
The fourth proportional to 249,242.67, 343,953.14 and 136,065.42 is: 187,769.32
Step by Step Solution
- Step 1: Write the proportion equation
249,242.67 : 343,953.14 = 136,065.42 : x - Step 2: Convert to fraction form
249,242.67/343,953.14 = 136,065.42/x - Step 3: Cross multiply
249,242.67x = 343,953.14 × 136,065.42 - Step 4: Simplify right side
249,242.67x = 46,800,127,774.09 - Step 5: Solve for x
x = 46,800,127,774.09/249,242.67 - Step 6: Final answer
x = 187,769.32
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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.