Finding the Fourth Proportional to 249,221.69, 343,921.50 and 141,789.41
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Solution
The fourth proportional to 249,221.69, 343,921.50 and 141,789.41 is: 195,666.86
Step by Step Solution
- Step 1: Write the proportion equation
249,221.69 : 343,921.50 = 141,789.41 : x - Step 2: Convert to fraction form
249,221.69/343,921.50 = 141,789.41/x - Step 3: Cross multiply
249,221.69x = 343,921.50 × 141,789.41 - Step 4: Simplify right side
249,221.69x = 48,764,424,851.71 - Step 5: Solve for x
x = 48,764,424,851.71/249,221.69 - Step 6: Final answer
x = 195,666.86
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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.