Finding the Fourth Proportional to 402,502.05, 603,773.73 and 102,985.20
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Solution
The fourth proportional to 402,502.05, 603,773.73 and 102,985.20 is: 154,483.08
Step by Step Solution
- Step 1: Write the proportion equation
402,502.05 : 603,773.73 = 102,985.20 : x - Step 2: Convert to fraction form
402,502.05/603,773.73 = 102,985.20/x - Step 3: Cross multiply
402,502.05x = 603,773.73 × 102,985.20 - Step 4: Simplify right side
402,502.05x = 62,179,758,338.80 - Step 5: Solve for x
x = 62,179,758,338.80/402,502.05 - Step 6: Final answer
x = 154,483.08
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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.