Finding the Fourth Proportional to 249,022.81, 343,650.76 and 135,844.75
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Solution
The fourth proportional to 249,022.81, 343,650.76 and 135,844.75 is: 187,465.36
Step by Step Solution
- Step 1: Write the proportion equation
249,022.81 : 343,650.76 = 135,844.75 : x - Step 2: Convert to fraction form
249,022.81/343,650.76 = 135,844.75/x - Step 3: Cross multiply
249,022.81x = 343,650.76 × 135,844.75 - Step 4: Simplify right side
249,022.81x = 46,683,151,579.51 - Step 5: Solve for x
x = 46,683,151,579.51/249,022.81 - Step 6: Final answer
x = 187,465.36
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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.