Finding the Fourth Proportional to 221,282.64, 305,366.76 and 124,479.18
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Solution
The fourth proportional to 221,282.64, 305,366.76 and 124,479.18 is: 171,779.42
Step by Step Solution
- Step 1: Write the proportion equation
221,282.64 : 305,366.76 = 124,479.18 : x - Step 2: Convert to fraction form
221,282.64/305,366.76 = 124,479.18/x - Step 3: Cross multiply
221,282.64x = 305,366.76 × 124,479.18 - Step 4: Simplify right side
221,282.64x = 38,011,803,884.06 - Step 5: Solve for x
x = 38,011,803,884.06/221,282.64 - Step 6: Final answer
x = 171,779.42
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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.