Finding the Fourth Proportional to 415,387.68, 573,426.36 and 243,281.76
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Solution
The fourth proportional to 415,387.68, 573,426.36 and 243,281.76 is: 335,840.90
Step by Step Solution
- Step 1: Write the proportion equation
415,387.68 : 573,426.36 = 243,281.76 : x - Step 2: Convert to fraction form
415,387.68/573,426.36 = 243,281.76/x - Step 3: Cross multiply
415,387.68x = 573,426.36 × 243,281.76 - Step 4: Simplify right side
415,387.68x = 139,504,174,091.19 - Step 5: Solve for x
x = 139,504,174,091.19/415,387.68 - Step 6: Final answer
x = 335,840.90
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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.