Finding the Fourth Proportional to 307,731.60, 461,554.20 and 97,390.80
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Solution
The fourth proportional to 307,731.60, 461,554.20 and 97,390.80 is: 146,072.53
Step by Step Solution
- Step 1: Write the proportion equation
307,731.60 : 461,554.20 = 97,390.80 : x - Step 2: Convert to fraction form
307,731.60/461,554.20 = 97,390.80/x - Step 3: Cross multiply
307,731.60x = 461,554.20 × 97,390.80 - Step 4: Simplify right side
307,731.60x = 44,951,132,781.36 - Step 5: Solve for x
x = 44,951,132,781.36/307,731.60 - Step 6: Final answer
x = 146,072.53
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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.