Finding the Fourth Proportional to 316,372.80, 474,484.68 and 91,673.94
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Solution
The fourth proportional to 316,372.80, 474,484.68 and 91,673.94 is: 137,489.32
Step by Step Solution
- Step 1: Write the proportion equation
316,372.80 : 474,484.68 = 91,673.94 : x - Step 2: Convert to fraction form
316,372.80/474,484.68 = 91,673.94/x - Step 3: Cross multiply
316,372.80x = 474,484.68 × 91,673.94 - Step 4: Simplify right side
316,372.80x = 43,497,880,085.24 - Step 5: Solve for x
x = 43,497,880,085.24/316,372.80 - Step 6: Final answer
x = 137,489.32
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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.