Finding the Fourth Proportional to 305,904.70, 458,857.05 and 260,633.80
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Solution
The fourth proportional to 305,904.70, 458,857.05 and 260,633.80 is: 390,950.70
Step by Step Solution
- Step 1: Write the proportion equation
305,904.70 : 458,857.05 = 260,633.80 : x - Step 2: Convert to fraction form
305,904.70/458,857.05 = 260,633.80/x - Step 3: Cross multiply
305,904.70x = 458,857.05 × 260,633.80 - Step 4: Simplify right side
305,904.70x = 119,593,656,598.29 - Step 5: Solve for x
x = 119,593,656,598.29/305,904.70 - Step 6: Final answer
x = 390,950.70
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1.5x scale
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.