Finding the Fourth Proportional to 360,909.99, 498,060.21 and 199,780.07
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Solution
The fourth proportional to 360,909.99, 498,060.21 and 199,780.07 is: 275,698.94
Step by Step Solution
- Step 1: Write the proportion equation
360,909.99 : 498,060.21 = 199,780.07 : x - Step 2: Convert to fraction form
360,909.99/498,060.21 = 199,780.07/x - Step 3: Cross multiply
360,909.99x = 498,060.21 × 199,780.07 - Step 4: Simplify right side
360,909.99x = 99,502,501,127.71 - Step 5: Solve for x
x = 99,502,501,127.71/360,909.99 - Step 6: Final answer
x = 275,698.94
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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.