Finding the Fourth Proportional to 185,319.84, 255,734.50 and 100,435.08
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Solution
The fourth proportional to 185,319.84, 255,734.50 and 100,435.08 is: 138,596.68
Step by Step Solution
- Step 1: Write the proportion equation
185,319.84 : 255,734.50 = 100,435.08 : x - Step 2: Convert to fraction form
185,319.84/255,734.50 = 100,435.08/x - Step 3: Cross multiply
185,319.84x = 255,734.50 × 100,435.08 - Step 4: Simplify right side
185,319.84x = 25,684,714,966.26 - Step 5: Solve for x
x = 25,684,714,966.26/185,319.84 - Step 6: Final answer
x = 138,596.68
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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.