Finding the Fourth Proportional to 257,648.11, 386,474.66 and 97,681.03
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Solution
The fourth proportional to 257,648.11, 386,474.66 and 97,681.03 is: 146,522.48
Step by Step Solution
- Step 1: Write the proportion equation
257,648.11 : 386,474.66 = 97,681.03 : x - Step 2: Convert to fraction form
257,648.11/386,474.66 = 97,681.03/x - Step 3: Cross multiply
257,648.11x = 386,474.66 × 97,681.03 - Step 4: Simplify right side
257,648.11x = 37,751,241,769.41 - Step 5: Solve for x
x = 37,751,241,769.41/257,648.11 - Step 6: Final answer
x = 146,522.48
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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.