Finding the Fourth Proportional to 297,220.24, 445,830.36 and 128,602.54
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Solution
The fourth proportional to 297,220.24, 445,830.36 and 128,602.54 is: 192,903.81
Step by Step Solution
- Step 1: Write the proportion equation
297,220.24 : 445,830.36 = 128,602.54 : x - Step 2: Convert to fraction form
297,220.24/445,830.36 = 128,602.54/x - Step 3: Cross multiply
297,220.24x = 445,830.36 × 128,602.54 - Step 4: Simplify right side
297,220.24x = 57,334,916,705.11 - Step 5: Solve for x
x = 57,334,916,705.11/297,220.24 - Step 6: Final answer
x = 192,903.81
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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.