Finding the Fourth Proportional to 155,287.70, 232,931.55 and 106,135.70
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Solution
The fourth proportional to 155,287.70, 232,931.55 and 106,135.70 is: 159,203.55
Step by Step Solution
- Step 1: Write the proportion equation
155,287.70 : 232,931.55 = 106,135.70 : x - Step 2: Convert to fraction form
155,287.70/232,931.55 = 106,135.70/x - Step 3: Cross multiply
155,287.70x = 232,931.55 × 106,135.70 - Step 4: Simplify right side
155,287.70x = 24,722,353,111.34 - Step 5: Solve for x
x = 24,722,353,111.34/155,287.70 - Step 6: Final answer
x = 159,203.55
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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.