Finding the Fourth Proportional to 249,988.35, 344,981.12 and 136,809.75
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Solution
The fourth proportional to 249,988.35, 344,981.12 and 136,809.75 is: 188,795.92
Step by Step Solution
- Step 1: Write the proportion equation
249,988.35 : 344,981.12 = 136,809.75 : x - Step 2: Convert to fraction form
249,988.35/344,981.12 = 136,809.75/x - Step 3: Cross multiply
249,988.35x = 344,981.12 × 136,809.75 - Step 4: Simplify right side
249,988.35x = 47,196,780,097.87 - Step 5: Solve for x
x = 47,196,780,097.87/249,988.35 - Step 6: Final answer
x = 188,795.92
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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.