Finding the Fourth Proportional to 421,579.74, 632,377.84 and 155,203.14
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Solution
The fourth proportional to 421,579.74, 632,377.84 and 155,203.14 is: 232,807.74
Step by Step Solution
- Step 1: Write the proportion equation
421,579.74 : 632,377.84 = 155,203.14 : x - Step 2: Convert to fraction form
421,579.74/632,377.84 = 155,203.14/x - Step 3: Cross multiply
421,579.74x = 632,377.84 × 155,203.14 - Step 4: Simplify right side
421,579.74x = 98,147,026,434.42 - Step 5: Solve for x
x = 98,147,026,434.42/421,579.74 - Step 6: Final answer
x = 232,807.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.