Finding the Fourth Proportional to 315,490.36, 435,045.24 and 207,922.78
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Solution
The fourth proportional to 315,490.36, 435,045.24 and 207,922.78 is: 286,714.99
Step by Step Solution
- Step 1: Write the proportion equation
315,490.36 : 435,045.24 = 207,922.78 : x - Step 2: Convert to fraction form
315,490.36/435,045.24 = 207,922.78/x - Step 3: Cross multiply
315,490.36x = 435,045.24 × 207,922.78 - Step 4: Simplify right side
315,490.36x = 90,455,815,726.57 - Step 5: Solve for x
x = 90,455,815,726.57/315,490.36 - Step 6: Final answer
x = 286,714.99
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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.