Finding the Fourth Proportional to 438,167.80, 657,251.70 and 290,423.80
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Solution
The fourth proportional to 438,167.80, 657,251.70 and 290,423.80 is: 435,635.70
Step by Step Solution
- Step 1: Write the proportion equation
438,167.80 : 657,251.70 = 290,423.80 : x - Step 2: Convert to fraction form
438,167.80/657,251.70 = 290,423.80/x - Step 3: Cross multiply
438,167.80x = 657,251.70 × 290,423.80 - Step 4: Simplify right side
438,167.80x = 190,881,536,270.46 - Step 5: Solve for x
x = 190,881,536,270.46/438,167.80 - Step 6: Final answer
x = 435,635.70
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1.5x scale
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.