Finding the Fourth Proportional to 249,101.12, 343,756.32 and 135,921.92
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Solution
The fourth proportional to 249,101.12, 343,756.32 and 135,921.92 is: 187,570.49
Step by Step Solution
- Step 1: Write the proportion equation
249,101.12 : 343,756.32 = 135,921.92 : x - Step 2: Convert to fraction form
249,101.12/343,756.32 = 135,921.92/x - Step 3: Cross multiply
249,101.12x = 343,756.32 × 135,921.92 - Step 4: Simplify right side
249,101.12x = 46,724,019,026.53 - Step 5: Solve for x
x = 46,724,019,026.53/249,101.12 - Step 6: Final answer
x = 187,570.49
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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.