Finding the Fourth Proportional to 478,083.60, 716,960.16 and 212,030.19
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Solution
The fourth proportional to 478,083.60, 716,960.16 and 212,030.19 is: 317,972.00
Step by Step Solution
- Step 1: Write the proportion equation
478,083.60 : 716,960.16 = 212,030.19 : x - Step 2: Convert to fraction form
478,083.60/716,960.16 = 212,030.19/x - Step 3: Cross multiply
478,083.60x = 716,960.16 × 212,030.19 - Step 4: Simplify right side
478,083.60x = 152,017,198,947.23 - Step 5: Solve for x
x = 152,017,198,947.23/478,083.60 - Step 6: Final answer
x = 317,972.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.