Finding the Fourth Proportional to 307,828.20, 461,756.70 and 97,482.60
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Solution
The fourth proportional to 307,828.20, 461,756.70 and 97,482.60 is: 146,228.46
Step by Step Solution
- Step 1: Write the proportion equation
307,828.20 : 461,756.70 = 97,482.60 : x - Step 2: Convert to fraction form
307,828.20/461,756.70 = 97,482.60/x - Step 3: Cross multiply
307,828.20x = 461,756.70 × 97,482.60 - Step 4: Simplify right side
307,828.20x = 45,013,243,683.42 - Step 5: Solve for x
x = 45,013,243,683.42/307,828.20 - Step 6: Final answer
x = 146,228.46
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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.