Finding the Fourth Proportional to 249,014.94, 343,639.87 and 135,836.88
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Solution
The fourth proportional to 249,014.94, 343,639.87 and 135,836.88 is: 187,454.49
Step by Step Solution
- Step 1: Write the proportion equation
249,014.94 : 343,639.87 = 135,836.88 : x - Step 2: Convert to fraction form
249,014.94/343,639.87 = 135,836.88/x - Step 3: Cross multiply
249,014.94x = 343,639.87 × 135,836.88 - Step 4: Simplify right side
249,014.94x = 46,678,967,784.41 - Step 5: Solve for x
x = 46,678,967,784.41/249,014.94 - Step 6: Final answer
x = 187,454.49
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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.