Finding the Fourth Proportional to 257,765.24, 355,715.24 and 143,061.18
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Solution
The fourth proportional to 257,765.24, 355,715.24 and 143,061.18 is: 197,423.99
Step by Step Solution
- Step 1: Write the proportion equation
257,765.24 : 355,715.24 = 143,061.18 : x - Step 2: Convert to fraction form
257,765.24/355,715.24 = 143,061.18/x - Step 3: Cross multiply
257,765.24x = 355,715.24 × 143,061.18 - Step 4: Simplify right side
257,765.24x = 50,889,041,263.08 - Step 5: Solve for x
x = 50,889,041,263.08/257,765.24 - Step 6: Final answer
x = 197,423.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.