Finding the Fourth Proportional to 180,909.08, 249,425.12 and 129,287.88
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Solution
The fourth proportional to 180,909.08, 249,425.12 and 129,287.88 is: 178,253.32
Step by Step Solution
- Step 1: Write the proportion equation
180,909.08 : 249,425.12 = 129,287.88 : x - Step 2: Convert to fraction form
180,909.08/249,425.12 = 129,287.88/x - Step 3: Cross multiply
180,909.08x = 249,425.12 × 129,287.88 - Step 4: Simplify right side
180,909.08x = 32,247,644,983.55 - Step 5: Solve for x
x = 32,247,644,983.55/180,909.08 - Step 6: Final answer
x = 178,253.32
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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.