Finding the Fourth Proportional to 185,781.30, 256,484.60 and 122,303.63
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Solution
The fourth proportional to 185,781.30, 256,484.60 and 122,303.63 is: 168,849.05
Step by Step Solution
- Step 1: Write the proportion equation
185,781.30 : 256,484.60 = 122,303.63 : x - Step 2: Convert to fraction form
185,781.30/256,484.60 = 122,303.63/x - Step 3: Cross multiply
185,781.30x = 256,484.60 × 122,303.63 - Step 4: Simplify right side
185,781.30x = 31,368,995,725.16 - Step 5: Solve for x
x = 31,368,995,725.16/185,781.30 - Step 6: Final answer
x = 168,849.05
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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.