Finding the Fourth Proportional to 357,841.43, 493,623.01 and 226,779.08
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Solution
The fourth proportional to 357,841.43, 493,623.01 and 226,779.08 is: 312,829.54
Step by Step Solution
- Step 1: Write the proportion equation
357,841.43 : 493,623.01 = 226,779.08 : x - Step 2: Convert to fraction form
357,841.43/493,623.01 = 226,779.08/x - Step 3: Cross multiply
357,841.43x = 493,623.01 × 226,779.08 - Step 4: Simplify right side
357,841.43x = 111,943,369,889.99 - Step 5: Solve for x
x = 111,943,369,889.99/357,841.43 - Step 6: Final answer
x = 312,829.54
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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.