Finding the Fourth Proportional to 430,158.40, 644,860.34 and 163,741.70
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Solution
The fourth proportional to 430,158.40, 644,860.34 and 163,741.70 is: 245,468.95
Step by Step Solution
- Step 1: Write the proportion equation
430,158.40 : 644,860.34 = 163,741.70 : x - Step 2: Convert to fraction form
430,158.40/644,860.34 = 163,741.70/x - Step 3: Cross multiply
430,158.40x = 644,860.34 × 163,741.70 - Step 4: Simplify right side
430,158.40x = 105,590,529,741.65 - Step 5: Solve for x
x = 105,590,529,741.65/430,158.40 - Step 6: Final answer
x = 245,468.95
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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.