Finding the Fourth Proportional to 387,455.19, 581,181.97 and 106,971.63
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Solution
The fourth proportional to 387,455.19, 581,181.97 and 106,971.63 is: 160,457.21
Step by Step Solution
- Step 1: Write the proportion equation
387,455.19 : 581,181.97 = 106,971.63 : x - Step 2: Convert to fraction form
387,455.19/581,181.97 = 106,971.63/x - Step 3: Cross multiply
387,455.19x = 581,181.97 × 106,971.63 - Step 4: Simplify right side
387,455.19x = 62,169,979,216.74 - Step 5: Solve for x
x = 62,169,979,216.74/387,455.19 - Step 6: Final answer
x = 160,457.21
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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.