Finding the Fourth Proportional to 430,005.12, 645,013.44 and 149,527.68
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Solution
The fourth proportional to 430,005.12, 645,013.44 and 149,527.68 is: 224,293.52
Step by Step Solution
- Step 1: Write the proportion equation
430,005.12 : 645,013.44 = 149,527.68 : x - Step 2: Convert to fraction form
430,005.12/645,013.44 = 149,527.68/x - Step 3: Cross multiply
430,005.12x = 645,013.44 × 149,527.68 - Step 4: Simplify right side
430,005.12x = 96,447,363,252.02 - Step 5: Solve for x
x = 96,447,363,252.02/430,005.12 - Step 6: Final answer
x = 224,293.52
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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.