Finding the Fourth Proportional to 485,987.08, 729,032.54 and 205,532.68
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Solution
The fourth proportional to 485,987.08, 729,032.54 and 205,532.68 is: 308,320.98
Step by Step Solution
- Step 1: Write the proportion equation
485,987.08 : 729,032.54 = 205,532.68 : x - Step 2: Convert to fraction form
485,987.08/729,032.54 = 205,532.68/x - Step 3: Cross multiply
485,987.08x = 729,032.54 × 205,532.68 - Step 4: Simplify right side
485,987.08x = 149,840,011,753.41 - Step 5: Solve for x
x = 149,840,011,753.41/485,987.08 - Step 6: Final answer
x = 308,320.98
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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.