Finding the Fourth Proportional to 430,864.84, 645,997.47 and 190,848.46
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Solution
The fourth proportional to 430,864.84, 645,997.47 and 190,848.46 is: 286,139.90
Step by Step Solution
- Step 1: Write the proportion equation
430,864.84 : 645,997.47 = 190,848.46 : x - Step 2: Convert to fraction form
430,864.84/645,997.47 = 190,848.46/x - Step 3: Cross multiply
430,864.84x = 645,997.47 × 190,848.46 - Step 4: Simplify right side
430,864.84x = 123,287,622,313.40 - Step 5: Solve for x
x = 123,287,622,313.40/430,864.84 - Step 6: Final answer
x = 286,139.90
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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.