Finding the Fourth Proportional to 297,267.80, 445,628.70 and 128,681.96
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Solution
The fourth proportional to 297,267.80, 445,628.70 and 128,681.96 is: 192,904.76
Step by Step Solution
- Step 1: Write the proportion equation
297,267.80 : 445,628.70 = 128,681.96 : x - Step 2: Convert to fraction form
297,267.80/445,628.70 = 128,681.96/x - Step 3: Cross multiply
297,267.80x = 445,628.70 × 128,681.96 - Step 4: Simplify right side
297,267.80x = 57,344,374,548.25 - Step 5: Solve for x
x = 57,344,374,548.25/297,267.80 - Step 6: Final answer
x = 192,904.76
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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.