Finding the Fourth Proportional to 282,178.12, 423,405.58 and 132,430.58
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Solution
The fourth proportional to 282,178.12, 423,405.58 and 132,430.58 is: 198,710.82
Step by Step Solution
- Step 1: Write the proportion equation
282,178.12 : 423,405.58 = 132,430.58 : x - Step 2: Convert to fraction form
282,178.12/423,405.58 = 132,430.58/x - Step 3: Cross multiply
282,178.12x = 423,405.58 × 132,430.58 - Step 4: Simplify right side
282,178.12x = 56,071,846,534.64 - Step 5: Solve for x
x = 56,071,846,534.64/282,178.12 - Step 6: Final answer
x = 198,710.82
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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.