Finding the Fourth Proportional to 180,790.05, 249,464.07 and 100,217.55
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Solution
The fourth proportional to 180,790.05, 249,464.07 and 100,217.55 is: 138,285.70
Step by Step Solution
- Step 1: Write the proportion equation
180,790.05 : 249,464.07 = 100,217.55 : x - Step 2: Convert to fraction form
180,790.05/249,464.07 = 100,217.55/x - Step 3: Cross multiply
180,790.05x = 249,464.07 × 100,217.55 - Step 4: Simplify right side
180,790.05x = 25,000,677,908.43 - Step 5: Solve for x
x = 25,000,677,908.43/180,790.05 - Step 6: Final answer
x = 138,285.70
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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.