Finding the Fourth Proportional to 489,984.99, 735,167.63 and 190,675.81
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Solution
The fourth proportional to 489,984.99, 735,167.63 and 190,675.81 is: 286,087.71
Step by Step Solution
- Step 1: Write the proportion equation
489,984.99 : 735,167.63 = 190,675.81 : x - Step 2: Convert to fraction form
489,984.99/735,167.63 = 190,675.81/x - Step 3: Cross multiply
489,984.99x = 735,167.63 × 190,675.81 - Step 4: Simplify right side
489,984.99x = 140,178,683,336.03 - Step 5: Solve for x
x = 140,178,683,336.03/489,984.99 - Step 6: Final answer
x = 286,087.71
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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.