Finding the Fourth Proportional to 430,602.80, 645,829.68 and 131,010.80
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Solution
The fourth proportional to 430,602.80, 645,829.68 and 131,010.80 is: 196,493.53
Step by Step Solution
- Step 1: Write the proportion equation
430,602.80 : 645,829.68 = 131,010.80 : x - Step 2: Convert to fraction form
430,602.80/645,829.68 = 131,010.80/x - Step 3: Cross multiply
430,602.80x = 645,829.68 × 131,010.80 - Step 4: Simplify right side
430,602.80x = 84,610,663,040.54 - Step 5: Solve for x
x = 84,610,663,040.54/430,602.80 - Step 6: Final answer
x = 196,493.53
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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.