Finding the Fourth Proportional to 399,141.12, 598,193.28 and 162,208.08
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Solution
The fourth proportional to 399,141.12, 598,193.28 and 162,208.08 is: 243,101.45
Step by Step Solution
- Step 1: Write the proportion equation
399,141.12 : 598,193.28 = 162,208.08 : x - Step 2: Convert to fraction form
399,141.12/598,193.28 = 162,208.08/x - Step 3: Cross multiply
399,141.12x = 598,193.28 × 162,208.08 - Step 4: Simplify right side
399,141.12x = 97,031,783,417.70 - Step 5: Solve for x
x = 97,031,783,417.70/399,141.12 - Step 6: Final answer
x = 243,101.45
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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.