Finding the Fourth Proportional to 257,448.08, 355,299.35 and 142,762.68
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Solution
The fourth proportional to 257,448.08, 355,299.35 and 142,762.68 is: 197,024.14
Step by Step Solution
- Step 1: Write the proportion equation
257,448.08 : 355,299.35 = 142,762.68 : x - Step 2: Convert to fraction form
257,448.08/355,299.35 = 142,762.68/x - Step 3: Cross multiply
257,448.08x = 355,299.35 × 142,762.68 - Step 4: Simplify right side
257,448.08x = 50,723,486,694.44 - Step 5: Solve for x
x = 50,723,486,694.44/257,448.08 - Step 6: Final answer
x = 197,024.14
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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.