Finding the Fourth Proportional to 257,670.06, 386,186.99 and 186,835.87
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Solution
The fourth proportional to 257,670.06, 386,186.99 and 186,835.87 is: 280,023.14
Step by Step Solution
- Step 1: Write the proportion equation
257,670.06 : 386,186.99 = 186,835.87 : x - Step 2: Convert to fraction form
257,670.06/386,186.99 = 186,835.87/x - Step 3: Cross multiply
257,670.06x = 386,186.99 × 186,835.87 - Step 4: Simplify right side
257,670.06x = 72,153,580,686.54 - Step 5: Solve for x
x = 72,153,580,686.54/257,670.06 - Step 6: Final answer
x = 280,023.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.