Finding the Fourth Proportional to 185,906.08, 278,630.70 and 85,931.02
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Solution
The fourth proportional to 185,906.08, 278,630.70 and 85,931.02 is: 128,790.95
Step by Step Solution
- Step 1: Write the proportion equation
185,906.08 : 278,630.70 = 85,931.02 : x - Step 2: Convert to fraction form
185,906.08/278,630.70 = 85,931.02/x - Step 3: Cross multiply
185,906.08x = 278,630.70 × 85,931.02 - Step 4: Simplify right side
185,906.08x = 23,943,020,254.31 - Step 5: Solve for x
x = 23,943,020,254.31/185,906.08 - Step 6: Final answer
x = 128,790.95
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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.