Finding the Fourth Proportional to 459,145.80, 688,718.70 and 249,193.80
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Solution
The fourth proportional to 459,145.80, 688,718.70 and 249,193.80 is: 373,790.70
Step by Step Solution
- Step 1: Write the proportion equation
459,145.80 : 688,718.70 = 249,193.80 : x - Step 2: Convert to fraction form
459,145.80/688,718.70 = 249,193.80/x - Step 3: Cross multiply
459,145.80x = 688,718.70 × 249,193.80 - Step 4: Simplify right side
459,145.80x = 171,624,429,984.06 - Step 5: Solve for x
x = 171,624,429,984.06/459,145.80 - Step 6: Final answer
x = 373,790.70
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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.