Finding the Fourth Proportional to 430,373.89, 645,596.97 and 130,857.07
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Solution
The fourth proportional to 430,373.89, 645,596.97 and 130,857.07 is: 196,296.59
Step by Step Solution
- Step 1: Write the proportion equation
430,373.89 : 645,596.97 = 130,857.07 : x - Step 2: Convert to fraction form
430,373.89/645,596.97 = 130,857.07/x - Step 3: Cross multiply
430,373.89x = 645,596.97 × 130,857.07 - Step 4: Simplify right side
430,373.89x = 84,480,927,895.08 - Step 5: Solve for x
x = 84,480,927,895.08/430,373.89 - Step 6: Final answer
x = 196,296.59
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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.