Finding the Fourth Proportional to 430,522.24, 645,881.64 and 131,045.26
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Solution
The fourth proportional to 430,522.24, 645,881.64 and 131,045.26 is: 196,597.81
Step by Step Solution
- Step 1: Write the proportion equation
430,522.24 : 645,881.64 = 131,045.26 : x - Step 2: Convert to fraction form
430,522.24/645,881.64 = 131,045.26/x - Step 3: Cross multiply
430,522.24x = 645,881.64 × 131,045.26 - Step 4: Simplify right side
430,522.24x = 84,639,727,443.03 - Step 5: Solve for x
x = 84,639,727,443.03/430,522.24 - Step 6: Final answer
x = 196,597.81
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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.