Finding the Fourth Proportional to 307,220.68, 423,969.18 and 171,250.84
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Solution
The fourth proportional to 307,220.68, 423,969.18 and 171,250.84 is: 236,328.75
Step by Step Solution
- Step 1: Write the proportion equation
307,220.68 : 423,969.18 = 171,250.84 : x - Step 2: Convert to fraction form
307,220.68/423,969.18 = 171,250.84/x - Step 3: Cross multiply
307,220.68x = 423,969.18 × 171,250.84 - Step 4: Simplify right side
307,220.68x = 72,605,078,209.11 - Step 5: Solve for x
x = 72,605,078,209.11/307,220.68 - Step 6: Final answer
x = 236,328.75
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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.