Finding the Fourth Proportional to 343,313.70, 514,970.55 and 90,593.70
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Solution
The fourth proportional to 343,313.70, 514,970.55 and 90,593.70 is: 135,890.55
Step by Step Solution
- Step 1: Write the proportion equation
343,313.70 : 514,970.55 = 90,593.70 : x - Step 2: Convert to fraction form
343,313.70/514,970.55 = 90,593.70/x - Step 3: Cross multiply
343,313.70x = 514,970.55 × 90,593.70 - Step 4: Simplify right side
343,313.70x = 46,653,087,515.54 - Step 5: Solve for x
x = 46,653,087,515.54/343,313.70 - Step 6: Final answer
x = 135,890.55
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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.