Finding the Fourth Proportional to 572,235.40, 858,353.10 and 172,937.80
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Solution
The fourth proportional to 572,235.40, 858,353.10 and 172,937.80 is: 259,406.70
Step by Step Solution
- Step 1: Write the proportion equation
572,235.40 : 858,353.10 = 172,937.80 : x - Step 2: Convert to fraction form
572,235.40/858,353.10 = 172,937.80/x - Step 3: Cross multiply
572,235.40x = 858,353.10 × 172,937.80 - Step 4: Simplify right side
572,235.40x = 148,441,696,737.18 - Step 5: Solve for x
x = 148,441,696,737.18/572,235.40 - Step 6: Final answer
x = 259,406.70
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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.