Finding the Fourth Proportional to 288,656.16, 398,332.97 and 157,831.41
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Solution
The fourth proportional to 288,656.16, 398,332.97 and 157,831.41 is: 217,800.50
Step by Step Solution
- Step 1: Write the proportion equation
288,656.16 : 398,332.97 = 157,831.41 : x - Step 2: Convert to fraction form
288,656.16/398,332.97 = 157,831.41/x - Step 3: Cross multiply
288,656.16x = 398,332.97 × 157,831.41 - Step 4: Simplify right side
288,656.16x = 62,869,454,036.83 - Step 5: Solve for x
x = 62,869,454,036.83/288,656.16 - Step 6: Final answer
x = 217,800.50
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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.