Finding the Fourth Proportional to 390,768.31, 586,070.43 and 110,219.95
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Solution
The fourth proportional to 390,768.31, 586,070.43 and 110,219.95 is: 165,306.79
Step by Step Solution
- Step 1: Write the proportion equation
390,768.31 : 586,070.43 = 110,219.95 : x - Step 2: Convert to fraction form
390,768.31/586,070.43 = 110,219.95/x - Step 3: Cross multiply
390,768.31x = 586,070.43 × 110,219.95 - Step 4: Simplify right side
390,768.31x = 64,596,653,491.08 - Step 5: Solve for x
x = 64,596,653,491.08/390,768.31 - Step 6: Final answer
x = 165,306.79
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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.