Finding the Fourth Proportional to 329,890.07, 455,221.05 and 193,929.75
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Solution
The fourth proportional to 329,890.07, 455,221.05 and 193,929.75 is: 267,607.04
Step by Step Solution
- Step 1: Write the proportion equation
329,890.07 : 455,221.05 = 193,929.75 : x - Step 2: Convert to fraction form
329,890.07/455,221.05 = 193,929.75/x - Step 3: Cross multiply
329,890.07x = 455,221.05 × 193,929.75 - Step 4: Simplify right side
329,890.07x = 88,280,904,421.24 - Step 5: Solve for x
x = 88,280,904,421.24/329,890.07 - Step 6: Final answer
x = 267,607.04
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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.