Finding the Fourth Proportional to 416,767.97, 575,139.74 and 225,781.31
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Solution
The fourth proportional to 416,767.97, 575,139.74 and 225,781.31 is: 311,578.17
Step by Step Solution
- Step 1: Write the proportion equation
416,767.97 : 575,139.74 = 225,781.31 : x - Step 2: Convert to fraction form
416,767.97/575,139.74 = 225,781.31/x - Step 3: Cross multiply
416,767.97x = 575,139.74 × 225,781.31 - Step 4: Simplify right side
416,767.97x = 129,855,799,925.65 - Step 5: Solve for x
x = 129,855,799,925.65/416,767.97 - Step 6: Final answer
x = 311,578.17
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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.