Finding the Fourth Proportional to 329,774.16, 455,515.46 and 243,907.68
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Solution
The fourth proportional to 329,774.16, 455,515.46 and 243,907.68 is: 336,908.50
Step by Step Solution
- Step 1: Write the proportion equation
329,774.16 : 455,515.46 = 243,907.68 : x - Step 2: Convert to fraction form
329,774.16/455,515.46 = 243,907.68/x - Step 3: Cross multiply
329,774.16x = 455,515.46 × 243,907.68 - Step 4: Simplify right side
329,774.16x = 111,103,719,052.73 - Step 5: Solve for x
x = 111,103,719,052.73/329,774.16 - Step 6: Final answer
x = 336,908.50
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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.