Finding the Fourth Proportional to 135,242.60, 202,820.70 and 56,337.80
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Solution
The fourth proportional to 135,242.60, 202,820.70 and 56,337.80 is: 84,488.70
Step by Step Solution
- Step 1: Write the proportion equation
135,242.60 : 202,820.70 = 56,337.80 : x - Step 2: Convert to fraction form
135,242.60/202,820.70 = 56,337.80/x - Step 3: Cross multiply
135,242.60x = 202,820.70 × 56,337.80 - Step 4: Simplify right side
135,242.60x = 11,426,472,032.46 - Step 5: Solve for x
x = 11,426,472,032.46/135,242.60 - Step 6: Final answer
x = 84,488.70
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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.