Finding the Fourth Proportional to 421,931.36, 632,744.76 and 141,384.08
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Solution
The fourth proportional to 421,931.36, 632,744.76 and 141,384.08 is: 212,025.09
Step by Step Solution
- Step 1: Write the proportion equation
421,931.36 : 632,744.76 = 141,384.08 : x - Step 2: Convert to fraction form
421,931.36/632,744.76 = 141,384.08/x - Step 3: Cross multiply
421,931.36x = 632,744.76 × 141,384.08 - Step 4: Simplify right side
421,931.36x = 89,460,035,767.42 - Step 5: Solve for x
x = 89,460,035,767.42/421,931.36 - Step 6: Final answer
x = 212,025.09
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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.