Finding the Fourth Proportional to 509,165.68, 763,455.86 and 209,852.88
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Solution
The fourth proportional to 509,165.68, 763,455.86 and 209,852.88 is: 314,658.70
Step by Step Solution
- Step 1: Write the proportion equation
509,165.68 : 763,455.86 = 209,852.88 : x - Step 2: Convert to fraction form
509,165.68/763,455.86 = 209,852.88/x - Step 3: Cross multiply
509,165.68x = 763,455.86 × 209,852.88 - Step 4: Simplify right side
509,165.68x = 160,213,410,973.88 - Step 5: Solve for x
x = 160,213,410,973.88/509,165.68 - Step 6: Final answer
x = 314,658.70
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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.