Finding the Fourth Proportional to 411,001, 616,501.50 and 115,513
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Solution
The fourth proportional to 411,001, 616,501.50 and 115,513 is: 173,269.50
Step by Step Solution
- Step 1: Write the proportion equation
411,001 : 616,501.50 = 115,513 : x - Step 2: Convert to fraction form
411,001/616,501.50 = 115,513/x - Step 3: Cross multiply
411,001x = 616,501.50 × 115,513 - Step 4: Simplify right side
411,001x = 71,213,937,769.50 - Step 5: Solve for x
x = 71,213,937,769.50/411,001 - Step 6: Final answer
x = 173,269.50
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1.5x scale
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.