Finding the Fourth Proportional to 421,259.74, 581,442.91 and 240,079.14
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Solution
The fourth proportional to 421,259.74, 581,442.91 and 240,079.14 is: 331,368.75
Step by Step Solution
- Step 1: Write the proportion equation
421,259.74 : 581,442.91 = 240,079.14 : x - Step 2: Convert to fraction form
421,259.74/581,442.91 = 240,079.14/x - Step 3: Cross multiply
421,259.74x = 581,442.91 × 240,079.14 - Step 4: Simplify right side
421,259.74x = 139,592,313,191.70 - Step 5: Solve for x
x = 139,592,313,191.70/421,259.74 - Step 6: Final answer
x = 331,368.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.