Finding the Fourth Proportional to 249,862.11, 344,808.63 and 135,140.87
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Solution
The fourth proportional to 249,862.11, 344,808.63 and 135,140.87 is: 186,493.81
Step by Step Solution
- Step 1: Write the proportion equation
249,862.11 : 344,808.63 = 135,140.87 : x - Step 2: Convert to fraction form
249,862.11/344,808.63 = 135,140.87/x - Step 3: Cross multiply
249,862.11x = 344,808.63 × 135,140.87 - Step 4: Simplify right side
249,862.11x = 46,597,736,517.67 - Step 5: Solve for x
x = 46,597,736,517.67/249,862.11 - Step 6: Final answer
x = 186,493.81
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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.