Finding the Fourth Proportional to 249,640.05, 374,423.16 and 91,831.59
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Solution
The fourth proportional to 249,640.05, 374,423.16 and 91,831.59 is: 137,733.81
Step by Step Solution
- Step 1: Write the proportion equation
249,640.05 : 374,423.16 = 91,831.59 : x - Step 2: Convert to fraction form
249,640.05/374,423.16 = 91,831.59/x - Step 3: Cross multiply
249,640.05x = 374,423.16 × 91,831.59 - Step 4: Simplify right side
249,640.05x = 34,383,875,864.08 - Step 5: Solve for x
x = 34,383,875,864.08/249,640.05 - Step 6: Final answer
x = 137,733.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.