Finding the Fourth Proportional to 430,533.06, 645,800.13 and 205,840.68
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Solution
The fourth proportional to 430,533.06, 645,800.13 and 205,840.68 is: 308,761.28
Step by Step Solution
- Step 1: Write the proportion equation
430,533.06 : 645,800.13 = 205,840.68 : x - Step 2: Convert to fraction form
430,533.06/645,800.13 = 205,840.68/x - Step 3: Cross multiply
430,533.06x = 645,800.13 × 205,840.68 - Step 4: Simplify right side
430,533.06x = 132,931,937,903.29 - Step 5: Solve for x
x = 132,931,937,903.29/430,533.06 - Step 6: Final answer
x = 308,761.28
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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.