Finding the Fourth Proportional to 249,030.72, 343,663.20 and 135,855.84
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Solution
The fourth proportional to 249,030.72, 343,663.20 and 135,855.84 is: 187,481.50
Step by Step Solution
- Step 1: Write the proportion equation
249,030.72 : 343,663.20 = 135,855.84 : x - Step 2: Convert to fraction form
249,030.72/343,663.20 = 135,855.84/x - Step 3: Cross multiply
249,030.72x = 343,663.20 × 135,855.84 - Step 4: Simplify right side
249,030.72x = 46,688,652,713.09 - Step 5: Solve for x
x = 46,688,652,713.09/249,030.72 - Step 6: Final answer
x = 187,481.50
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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.