Finding the Fourth Proportional to 430,756.25, 646,134.53 and 193,822.14
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Solution
The fourth proportional to 430,756.25, 646,134.53 and 193,822.14 is: 290,733.28
Step by Step Solution
- Step 1: Write the proportion equation
430,756.25 : 646,134.53 = 193,822.14 : x - Step 2: Convert to fraction form
430,756.25/646,134.53 = 193,822.14/x - Step 3: Cross multiply
430,756.25x = 646,134.53 × 193,822.14 - Step 4: Simplify right side
430,756.25x = 125,235,177,332.49 - Step 5: Solve for x
x = 125,235,177,332.49/430,756.25 - Step 6: Final answer
x = 290,733.28
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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.