Finding the Fourth Proportional to 153,455.22, 211,778.84 and 93,028.41
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Solution
The fourth proportional to 153,455.22, 211,778.84 and 93,028.41 is: 128,385.65
Step by Step Solution
- Step 1: Write the proportion equation
153,455.22 : 211,778.84 = 93,028.41 : x - Step 2: Convert to fraction form
153,455.22/211,778.84 = 93,028.41/x - Step 3: Cross multiply
153,455.22x = 211,778.84 × 93,028.41 - Step 4: Simplify right side
153,455.22x = 19,701,448,291.70 - Step 5: Solve for x
x = 19,701,448,291.70/153,455.22 - Step 6: Final answer
x = 128,385.65
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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.