Finding the Fourth Proportional to 221,281.73, 305,316.29 and 125,780.91
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Solution
The fourth proportional to 221,281.73, 305,316.29 and 125,780.91 is: 173,547.82
Step by Step Solution
- Step 1: Write the proportion equation
221,281.73 : 305,316.29 = 125,780.91 : x - Step 2: Convert to fraction form
221,281.73/305,316.29 = 125,780.91/x - Step 3: Cross multiply
221,281.73x = 305,316.29 × 125,780.91 - Step 4: Simplify right side
221,281.73x = 38,402,960,794.02 - Step 5: Solve for x
x = 38,402,960,794.02/221,281.73 - Step 6: Final answer
x = 173,547.82
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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.