Finding the Fourth Proportional to 430,340.05, 645,486.71 and 130,797.28
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Solution
The fourth proportional to 430,340.05, 645,486.71 and 130,797.28 is: 196,188.82
Step by Step Solution
- Step 1: Write the proportion equation
430,340.05 : 645,486.71 = 130,797.28 : x - Step 2: Convert to fraction form
430,340.05/645,486.71 = 130,797.28/x - Step 3: Cross multiply
430,340.05x = 645,486.71 × 130,797.28 - Step 4: Simplify right side
430,340.05x = 84,427,905,944.15 - Step 5: Solve for x
x = 84,427,905,944.15/430,340.05 - Step 6: Final answer
x = 196,188.82
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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.