Finding the Fourth Proportional to 268,278.20, 370,202.20 and 155,108.24
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Solution
The fourth proportional to 268,278.20, 370,202.20 and 155,108.24 is: 214,036.82
Step by Step Solution
- Step 1: Write the proportion equation
268,278.20 : 370,202.20 = 155,108.24 : x - Step 2: Convert to fraction form
268,278.20/370,202.20 = 155,108.24/x - Step 3: Cross multiply
268,278.20x = 370,202.20 × 155,108.24 - Step 4: Simplify right side
268,278.20x = 57,421,411,686.13 - Step 5: Solve for x
x = 57,421,411,686.13/268,278.20 - Step 6: Final answer
x = 214,036.82
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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.