Finding the Fourth Proportional to 161,228.01, 221,986.43 and 146,281.23
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Solution
The fourth proportional to 161,228.01, 221,986.43 and 146,281.23 is: 201,406.99
Step by Step Solution
- Step 1: Write the proportion equation
161,228.01 : 221,986.43 = 146,281.23 : x - Step 2: Convert to fraction form
161,228.01/221,986.43 = 146,281.23/x - Step 3: Cross multiply
161,228.01x = 221,986.43 × 146,281.23 - Step 4: Simplify right side
161,228.01x = 32,472,448,023.71 - Step 5: Solve for x
x = 32,472,448,023.71/161,228.01 - Step 6: Final answer
x = 201,406.99
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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.