Finding the Fourth Proportional to 245,554.83, 368,501.36 and 85,631.99
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Solution
The fourth proportional to 245,554.83, 368,501.36 and 85,631.99 is: 128,506.95
Step by Step Solution
- Step 1: Write the proportion equation
245,554.83 : 368,501.36 = 85,631.99 : x - Step 2: Convert to fraction form
245,554.83/368,501.36 = 85,631.99/x - Step 3: Cross multiply
245,554.83x = 368,501.36 × 85,631.99 - Step 4: Simplify right side
245,554.83x = 31,555,502,503.84 - Step 5: Solve for x
x = 31,555,502,503.84/245,554.83 - Step 6: Final answer
x = 128,506.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.