Finding the Fourth Proportional to 353,291.42, 487,352.90 and 245,674.62
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Solution
The fourth proportional to 353,291.42, 487,352.90 and 245,674.62 is: 338,899.37
Step by Step Solution
- Step 1: Write the proportion equation
353,291.42 : 487,352.90 = 245,674.62 : x - Step 2: Convert to fraction form
353,291.42/487,352.90 = 245,674.62/x - Step 3: Cross multiply
353,291.42x = 487,352.90 × 245,674.62 - Step 4: Simplify right side
353,291.42x = 119,730,239,127.59 - Step 5: Solve for x
x = 119,730,239,127.59/353,291.42 - Step 6: Final answer
x = 338,899.37
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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.