Finding the Fourth Proportional to 249,970.55, 375,015.23 and 81,491.99
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Solution
The fourth proportional to 249,970.55, 375,015.23 and 81,491.99 is: 122,257.35
Step by Step Solution
- Step 1: Write the proportion equation
249,970.55 : 375,015.23 = 81,491.99 : x - Step 2: Convert to fraction form
249,970.55/375,015.23 = 81,491.99/x - Step 3: Cross multiply
249,970.55x = 375,015.23 × 81,491.99 - Step 4: Simplify right side
249,970.55x = 30,560,736,965.55 - Step 5: Solve for x
x = 30,560,736,965.55/249,970.55 - Step 6: Final answer
x = 122,257.35
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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.