Finding the Fourth Proportional to 430,531.61, 645,235.88 and 268,358.67
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Solution
The fourth proportional to 430,531.61, 645,235.88 and 268,358.67 is: 402,187.99
Step by Step Solution
- Step 1: Write the proportion equation
430,531.61 : 645,235.88 = 268,358.67 : x - Step 2: Convert to fraction form
430,531.61/645,235.88 = 268,358.67/x - Step 3: Cross multiply
430,531.61x = 645,235.88 × 268,358.67 - Step 4: Simplify right side
430,531.61x = 173,154,641,251.29 - Step 5: Solve for x
x = 173,154,641,251.29/430,531.61 - Step 6: Final answer
x = 402,187.99
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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.