Finding the Fourth Proportional to 257,469.99, 355,345.37 and 142,774.14
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Solution
The fourth proportional to 257,469.99, 355,345.37 and 142,774.14 is: 197,048.72
Step by Step Solution
- Step 1: Write the proportion equation
257,469.99 : 355,345.37 = 142,774.14 : x - Step 2: Convert to fraction form
257,469.99/355,345.37 = 142,774.14/x - Step 3: Cross multiply
257,469.99x = 355,345.37 × 142,774.14 - Step 4: Simplify right side
257,469.99x = 50,734,130,758.81 - Step 5: Solve for x
x = 50,734,130,758.81/257,469.99 - Step 6: Final answer
x = 197,048.72
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1.5x scale
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.