Finding the Fourth Proportional to 430,921.80, 646,382.70 and 164,545.20
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Solution
The fourth proportional to 430,921.80, 646,382.70 and 164,545.20 is: 246,817.80
Step by Step Solution
- Step 1: Write the proportion equation
430,921.80 : 646,382.70 = 164,545.20 : x - Step 2: Convert to fraction form
430,921.80/646,382.70 = 164,545.20/x - Step 3: Cross multiply
430,921.80x = 646,382.70 × 164,545.20 - Step 4: Simplify right side
430,921.80x = 106,359,170,648.04 - Step 5: Solve for x
x = 106,359,170,648.04/430,921.80 - Step 6: Final answer
x = 246,817.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.