Finding the Fourth Proportional to 435,644.80, 653,121.60 and 238,652.80
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Solution
The fourth proportional to 435,644.80, 653,121.60 and 238,652.80 is: 357,789.88
Step by Step Solution
- Step 1: Write the proportion equation
435,644.80 : 653,121.60 = 238,652.80 : x - Step 2: Convert to fraction form
435,644.80/653,121.60 = 238,652.80/x - Step 3: Cross multiply
435,644.80x = 653,121.60 × 238,652.80 - Step 4: Simplify right side
435,644.80x = 155,869,298,580.48 - Step 5: Solve for x
x = 155,869,298,580.48/435,644.80 - Step 6: Final answer
x = 357,789.88
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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.