Finding the Fourth Proportional to 257,829.95, 386,349.35 and 107,988.26
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Solution
The fourth proportional to 257,829.95, 386,349.35 and 107,988.26 is: 161,816.70
Step by Step Solution
- Step 1: Write the proportion equation
257,829.95 : 386,349.35 = 107,988.26 : x - Step 2: Convert to fraction form
257,829.95/386,349.35 = 107,988.26/x - Step 3: Cross multiply
257,829.95x = 386,349.35 × 107,988.26 - Step 4: Simplify right side
257,829.95x = 41,721,191,586.94 - Step 5: Solve for x
x = 41,721,191,586.94/257,829.95 - Step 6: Final answer
x = 161,816.70
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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.