Finding the Fourth Proportional to 307,267.80, 460,901.70 and 85,651.80
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Solution
The fourth proportional to 307,267.80, 460,901.70 and 85,651.80 is: 128,477.70
Step by Step Solution
- Step 1: Write the proportion equation
307,267.80 : 460,901.70 = 85,651.80 : x - Step 2: Convert to fraction form
307,267.80/460,901.70 = 85,651.80/x - Step 3: Cross multiply
307,267.80x = 460,901.70 × 85,651.80 - Step 4: Simplify right side
307,267.80x = 39,477,060,228.06 - Step 5: Solve for x
x = 39,477,060,228.06/307,267.80 - Step 6: Final answer
x = 128,477.70
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1.5x scale
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.