Finding the Fourth Proportional to 312,476.95, 468,739.73 and 102,136.15
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Solution
The fourth proportional to 312,476.95, 468,739.73 and 102,136.15 is: 153,212.17
Step by Step Solution
- Step 1: Write the proportion equation
312,476.95 : 468,739.73 = 102,136.15 : x - Step 2: Convert to fraction form
312,476.95/468,739.73 = 102,136.15/x - Step 3: Cross multiply
312,476.95x = 468,739.73 × 102,136.15 - Step 4: Simplify right side
312,476.95x = 47,875,271,374.24 - Step 5: Solve for x
x = 47,875,271,374.24/312,476.95 - Step 6: Final answer
x = 153,212.17
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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.