Finding the Fourth Proportional to 278,345.84, 417,594.09 and 198,484.70
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Solution
The fourth proportional to 278,345.84, 417,594.09 and 198,484.70 is: 297,780.77
Step by Step Solution
- Step 1: Write the proportion equation
278,345.84 : 417,594.09 = 198,484.70 : x - Step 2: Convert to fraction form
278,345.84/417,594.09 = 198,484.70/x - Step 3: Cross multiply
278,345.84x = 417,594.09 × 198,484.70 - Step 4: Simplify right side
278,345.84x = 82,886,037,675.42 - Step 5: Solve for x
x = 82,886,037,675.42/278,345.84 - Step 6: Final answer
x = 297,780.77
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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.