Finding the Fourth Proportional to 255,479.42, 352,535.17 and 157,347.02
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Solution
The fourth proportional to 255,479.42, 352,535.17 and 157,347.02 is: 217,122.61
Step by Step Solution
- Step 1: Write the proportion equation
255,479.42 : 352,535.17 = 157,347.02 : x - Step 2: Convert to fraction form
255,479.42/352,535.17 = 157,347.02/x - Step 3: Cross multiply
255,479.42x = 352,535.17 × 157,347.02 - Step 4: Simplify right side
255,479.42x = 55,470,358,404.24 - Step 5: Solve for x
x = 55,470,358,404.24/255,479.42 - Step 6: Final answer
x = 217,122.61
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1.5x scale
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.