Finding the Fourth Proportional to 402,575.49, 555,547.95 and 221,283.54
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Solution
The fourth proportional to 402,575.49, 555,547.95 and 221,283.54 is: 305,367.86
Step by Step Solution
- Step 1: Write the proportion equation
402,575.49 : 555,547.95 = 221,283.54 : x - Step 2: Convert to fraction form
402,575.49/555,547.95 = 221,283.54/x - Step 3: Cross multiply
402,575.49x = 555,547.95 × 221,283.54 - Step 4: Simplify right side
402,575.49x = 122,933,617,015.74 - Step 5: Solve for x
x = 122,933,617,015.74/402,575.49 - Step 6: Final answer
x = 305,367.86
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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.