Finding the Fourth Proportional to 371,831.18, 513,130.28 and 202,065.30
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Solution
The fourth proportional to 371,831.18, 513,130.28 and 202,065.30 is: 278,851.88
Step by Step Solution
- Step 1: Write the proportion equation
371,831.18 : 513,130.28 = 202,065.30 : x - Step 2: Convert to fraction form
371,831.18/513,130.28 = 202,065.30/x - Step 3: Cross multiply
371,831.18x = 513,130.28 × 202,065.30 - Step 4: Simplify right side
371,831.18x = 103,685,822,956.96 - Step 5: Solve for x
x = 103,685,822,956.96/371,831.18 - Step 6: Final answer
x = 278,851.88
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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.