Finding the Fourth Proportional to 257,838.03, 355,810.97 and 143,109.99
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Solution
The fourth proportional to 257,838.03, 355,810.97 and 143,109.99 is: 197,488.73
Step by Step Solution
- Step 1: Write the proportion equation
257,838.03 : 355,810.97 = 143,109.99 : x - Step 2: Convert to fraction form
257,838.03/355,810.97 = 143,109.99/x - Step 3: Cross multiply
257,838.03x = 355,810.97 × 143,109.99 - Step 4: Simplify right side
257,838.03x = 50,920,104,358.59 - Step 5: Solve for x
x = 50,920,104,358.59/257,838.03 - Step 6: Final answer
x = 197,488.73
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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.