Finding the Fourth Proportional to 453,920.84, 680,970.98 and 134,078.28
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Solution
The fourth proportional to 453,920.84, 680,970.98 and 134,078.28 is: 201,143.92
Step by Step Solution
- Step 1: Write the proportion equation
453,920.84 : 680,970.98 = 134,078.28 : x - Step 2: Convert to fraction form
453,920.84/680,970.98 = 134,078.28/x - Step 3: Cross multiply
453,920.84x = 680,970.98 × 134,078.28 - Step 4: Simplify right side
453,920.84x = 91,303,417,728.31 - Step 5: Solve for x
x = 91,303,417,728.31/453,920.84 - Step 6: Final answer
x = 201,143.92
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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.