Finding the Fourth Proportional to 459,298.79, 688,975.00 and 139,461.09
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Solution
The fourth proportional to 459,298.79, 688,975.00 and 139,461.09 is: 209,199.77
Step by Step Solution
- Step 1: Write the proportion equation
459,298.79 : 688,975.00 = 139,461.09 : x - Step 2: Convert to fraction form
459,298.79/688,975.00 = 139,461.09/x - Step 3: Cross multiply
459,298.79x = 688,975.00 × 139,461.09 - Step 4: Simplify right side
459,298.79x = 96,085,201,550.44 - Step 5: Solve for x
x = 96,085,201,550.44/459,298.79 - Step 6: Final answer
x = 209,199.77
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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.